Seb and I discussed the history and contemporary status of the natural sciences and their relationship to philosophy and metaphysics.
I’ve just finished drafting this article, which will hopefully be featured in a special issue of the Journal of Philosophy, Theology, and the Sciences focused on panpsychism. It still needs plenty of editing, but I’m sharing it here for those who want a sneak peak. Criticisms and suggestions definitely welcome.
Title: “Physicalism and Its Discontents: A Study in Whitehead’s Panexperientialist Alternative”
Abstract (150-200 words): This paper brings Alfred North Whitehead’s Philosophy of Organism into conversation with the recent panpsychist turn in analytic philosophy of mind. Whitehead’s unabashedly metaphysical project broadly aligns with recent critiques of reductive physicalism and the turn toward a conception of experience as basic to Nature. This paper thus examines physicalism’s dominant strategies for explaining consciousness, including eliminativism, epiphenomenalism, and emergentism, and concludes that the panpsychist alternative is superior. However, Whitehead’s process-relational panexperientialism diverges in crucial respects from the dominant substance-property variants of panpsychism. I argue that Whitehead’s version avoids many of the conceptual difficulties plaguing the latter and that it thus represents a more formidable alternative to standard physicalism.
Key words: panpsychism, panexperientialism, physicalism, emergence, experience, consciousness, process philosophy
The skull-crackingly hard problem concerning the place of consciousness in the physical universe has led an increasing number of analytic philosophers of mind to take seriously the panpsychist alternative to standard physicalism. Nonetheless, Brüntrup and Jaskolla note in their editors’ introduction to Panpsychism: Contemporary Perspectives that the usual response to the doctrine remains “an incredulous stare” (2017, 2). Perhaps the most forceful dismissal to date comes from Colin McGinn, who in a reply to Galen Strawson rejects panpsychism as “a comforting piece of utter balderdash” that only stoned hippies could believe (McGinn 2006, 93).
But an explanation for the emergence of consciousness in the universe known to physics has thus far proven elusive. Fundamental philosophical questions remain to be answered before the criteria for such a scientific explanation can even be established. For example, is consciousness essentially ‘real’ or ‘illusory’? That is, does it “have truck with the totality of things by reason of its sheer actuality,” as Alfred North Whitehead suspected (1929, 15), or is it a peripheral accident, a mere epiphenomenon emergent from blindly churning physiochemical processes that are otherwise well understood by natural science? Does consciousness evolve, and if so, does it intelligently influence the behavior of the organisms instantiating it? These questions are not merely theoretical or academic. They cut to the very core who and what we are, shaping our sense of what it means to be human.
Despite the initial incredulity it provokes, this paper argues that panpsychism—specifically Whitehead’s process-relational, panexperiential version—provides a viable alternative to scientific materialism while also avoiding the philosophical excesses of dualism and idealism. Strange as it may sound to modern ears, panpsychism has a long and rich history stretching back to the origins of Western philosophy. Heraclitus opposed Parmenides’ vision of unchanging Being with the doctrine that ‘everything flows’ (panta rhea). Heraclitus understood the universe to be “an ever-living fire” (pyr aeizoon), making him not only the first recorded process philosopher but the first panpsychist, as well (Skrbina 2005, 29). Even in the early modern period, thinkers like Giordano Bruno and Gottfried Leibniz, often lauded for their important contributions to the emergence of the scientific worldview, continued to uphold some version of the doctrine. “Lucretius tells us what an atom looks like to others,” writes Whitehead, “and Leibniz tells us how an atom is feeling about itself” ( 1967, 132). Skeptics may be tempted to excuse Bruno and Leibniz’s panpsychist eccentricity as an unthought residue of pre-modern animism. Once enlightened by the findings of contemporary physics and biology, surely these luminaries would happily have dispensed with the ‘primitive’ notion that atoms can feel? Perhaps not. What, after all, are we to make of Whitehead, another mathematical and philosophical genius who critiqued scientific materialism and arrived at his own variety of panpsychism not despite but because of the findings of contemporary physics and biology?
“There persists…[a] fixed scientific cosmology which presupposes the ultimate fact of an irreducible brute matter…spread throughout space in a flux of configurations. In itself such a material is senseless, valueless, purposeless. It just does what it does do, following a fixed routine imposed by external relations which do not spring from the nature of its being…[This] is an assumption which I shall challenge as being entirely unsuited to the scientific situation at which we have now arrived” (Whitehead  1967, 17).
This paper brings Whitehead’s “Philosophy of Organism” ( 1978) into conversation with the recent panpsychist turn in analytic philosophy of mind. Whitehead’s unabashedly metaphysical project broadly aligns with recent critiques of reductive physicalism and the turn toward a conception of experience as basic to Nature. However, Whitehead’s process-relational panexperientialism diverges in crucial respects from the dominant substance-property variants of panpsychism. I argue that Whitehead’s version avoids many of the conceptual difficulties plaguing the latter and that it thus represents a more formidable alternative to standard physicalism.
1. Why not Whitehead?: A Brief Historical Excursus
“Urge & urge & urge,
Always the procreant urge of the world.
Out of the dimness opposite equals advance, always substance & increase, always sex,
Always a knit of identity, always distinction, always a breed of life.”
—Whitman (“Song of Myself”)
Understanding Whitehead’s process-relational approach to panpsychism (or panexperientialism, as David Ray Griffin has renamed it [Griffin 2008, 78]) first requires a bit of historical contextualization. While Whitehead’s early work with Bertrand Russell on the logical foundations of mathematics is widely acknowledged by analytic philosophers as seminal to the emergence of their school of thought, Whitehead’s later metaphysical speculations are for the most part either ignored or ridiculed. For example, W. V. Quine traveled to Harvard in the mid-1920s to study with the coauthor of the Principia Mathematica. After attending the lectures that became Science and the Modern World (1925), Quine acknowledged “a vivid sense of being in the presence of the great” but went on to admit that the notes he took were mostly full of doodles. “What [Whitehead] said,” Quine reports, “had little evident bearing on the problems that I recognized” (Quine 1985, 83). Another student of Whitehead’s at Harvard, Donald Davidson, was initially transfixed by his ideas, but later reflected that his encounter with Whitehead “set [him] back philosophically for years” by confirming his youthful “inclination to think that doing philosophy was like writing poetry” (Davidson 1999, 14). Not everyone was quite as sour on Whitehead’s speculations at Harvard. Ernest Nagel credited Whitehead with being one of the first to realize and attempt to address the metaphysical problems that were becoming “acutely pressing in the special sciences,” praising him for his “[sensitivity] to the advances of recent science as well to the ancient tradition that philosophy is the systematic study of being” (E. Nagel 1954, 154). But Nagel also noted “the severe abuse of language to which Whitehead is partial” (ibid.), a familiar (if not entirely fair) refrain among those who attempt to read him for the first time.
To round out this historical excursus, let us return to Nagel’s point about the special sciences. By the mid-1920s, the new quantum and relativity theories had already succeeded in demolishing the old mechanical philosophy of Nature by transforming matter into energy and merging space and time together with gravity. The classical explanations of Nature offered by a once confident scientific materialism no longer made any sense. A second scientific revolution was afoot. At the same time, Ludwig Wittgenstein led the logical positivists in a revolt against the excesses of British idealism by blowing up the bridge purporting to connect the metaphysical speculations of philosophers with the ultimate nature of things: “Whereof one cannot speak, thereof one must be silent” (Wittgenstein 1922, 189). The physicists struggling to come to terms with the strange ontological implications of their discoveries could henceforth expect no help from philosophers. Whitehead’s own pathbreaking work on the application of mathematics to physics made him especially sensitive to Einstein’s relativistic revolution; he was also well aware of the concurrently unfolding quantum revolution. His sensitivity to the metaphysical earthquake underway in the physical sciences awakened Whitehead from the dogmatic slumber of the mechanistic paradigm. “What is the sense of talking about a mechanical explanation,” Whitehead asked, “when you do not know what you mean by mechanics?” (1925, 16). His Philosophy of Organism is a protest against the lifeless Nature imagined by Descartes, Galileo, and Newton, and a rejection of the narrow linguistic analysis and sterile logical positivism of his philosophical contemporaries. His is an attempt to make natural science philosophical again by asking whether physical causes and motions need be so violently segregated from the conscious reasons and emotions by which we apprehend them.
In Process & Reality: An Essay in Cosmology ( 1978), Whitehead aims for nothing less than the construction of an organic system of the universe that not only brings quantum and relativity theories into coherence, but gathers up scientific truths, aesthetic feelings, and religious values into an integral vision of reality. It is true that Whitehead found it necessary to invent many new turns of phrase to accomplish this feat. He thus contrasts his speculative philosophical method with that of the “critical school” (Whitehead  1968, 173), which for my purposes can easily be identified with the then just emerging analytic school of thought. This school assumes that humanity “has consciously entertained all the fundamental ideas which are applicable to its experience” and that “human language, in single words or in phrases, explicitly expresses these ideas” (ibid.). The critical or analytic school, Whitehead continues, “confines itself to verbal analysis within the limits of the dictionary” (ibid.). In contrast, Whitehead’s speculative method “appeals to direct insight, and endeavors to indicate its meanings by further appeal to situations which promote such specific insights. It then enlarges the dictionary” (ibid.). Whitehead credits analytic philosophy for its “delicate accuracy of expression,” but marks the main “divergence between the schools [as] the quarrel between safety and adventure” (ibid.).
Davidson worried about the adventurous Whitehead’s attempted alliance between speculative philosophy and mystical poetry. Both, according to Whitehead, make “reference to form beyond the direct meanings of words.” He continues: “If you like to phrase it so, philosophy is mystical. For mysticism is direct insight into depths as yet unspoken” (ibid., 174). Davidson’s complaint may be short-sighted, however, especially once one has acknowledged the profound metaphysical problems that after nearly a century of careful analysis continue to plague not only the physical sciences but the philosophy of mind, as well. Hamlet was right: “There are more things in heaven and earth…”
While getting to the bottom of Whitehead’s chilly reception among analytic philosophers is not the aim of this paper, a few conjectures can be offered. After a celebrated first career as a mathematician, Whitehead’s untimely entry into philosophy in the mid-1920s can be read as heralding the more recent return to metaphysics both in the analytic and Continental traditions. Philosophers are finally catching up to the problems Whitehead was pointing out nearly a century ago. Perhaps it is just because his cosmological ideas initially emerged in the wrong season that they have remained buried in the snow. In addition to the unfortunate timing, Whitehead’s lack of easy classification is probably another reason for his neglect. Neither an analytic philosopher, nor a phenomenologist, Whitehead’s approach generally confounds partisans of both schools. That said, his process-relational philosophy has been creatively taken up by a number of friendly thinkers on the Continent (initially Henri Bergson (1999, 47), later Gilles Deleuze ( 1994, 284-285;  1993, 76ff), and most recently Isabelle Stengers (2011) and Bruno Latour (2005). Whitehead’s thought also featured prominently in the Speculative Realism movement that swept through Continental philosophy beginning in late 2010 (Bryant et al. 2011; Harman 2018). He is perhaps best situated within the American pragmatist tradition stemming from Charles Sanders Peirce, William James, and John Dewey, though even here the shoe pinches. Dewey is the only one who lived long enough to respond to Whitehead’s philosophy, which he praises for its organicism and experiential point of departure but criticizes for its mathematical residues (Schilpp 1941). In the end it must be admitted that Whitehead’s process-relational philosophy is singular in its aims and conclusions. Any attempt to pigeonhole his thought into a school inevitably trivializes it. Of course, Whitehead himself generated a school, but there exist plenty of wild Whiteheadians who avoid any established orthodoxies, like Deleuze, Stengers, and Latour, or Randall Auxier and Gary Herstein (2017).
Finally, there is the issue of Whitehead’s inclusion of reformed conceptions of teleology and God in his cosmological scheme. For many philosophers and natural scientists, this rules out in advance any serious engagement with his ideas. Daniel J. Nicholson and John Dupré, for example, claim that the theological baggage of Whitehead’s process philosophy is a “liability” for thinkers with a naturalistic aim (2018, 7). But a closer look at Whitehead’s process-relational reformulations of purpose and divinity may reveal to those who rushed to dismiss them that Whitehead shares many of their criticisms of traditional natural theology. By the time God and teleology return from Whitehead’s adventure in cosmology, the former is no longer an omnipotent Creator but a creature of Creativity suffering with the rest of us, and the latter is no longer an eternal design imposed from beyond the world but an aesthetic lure immanent in the experience of each and every actual occasion in the world, whether that experience belongs to Shakespeare or “to the most trivial puff of existence in far-off empty space” (Whitehead  1978, 28).
My hope is that this paper brings Whitehead out of cold storage and at least thaws his ideas enough to get those unfamiliar with his Philosophy of Organism to consider the alternative it represents, not only to physicalism, but to dualism and idealism, as well. Despite Quine’s first impression, it may turn out that Whitehead has much to say about the problems faced by contemporary analytic philosophers, especially those who, against all odds, now find themselves affirming the panpsychist heresy.
2. The Place of Consciousness in a Physical Universe
Serious conceptual difficulties await any philosopher attempting to understand the place of consciousness in the physical universe. David Chalmers’ well-known “hard problem of consciousness” (1995) is perhaps the most oft cited formulation of the impasse, but the basic problem goes back to Rene Descartes’ argument that a real distinction exists between a thinking or mental substance and an extended or material substance ( 1982, 21]. While many contemporary physicists would be quick to dismiss Descartes’ idea of an immaterial soul as unscientific, his correlate idea of extended matter continues to shape the scientific imaginary of Nature as something explainable without remainder in purely mathematical terms. While Descartes faced the difficult problem of accounting for the relationship between two entirely autonomous substances, contemporary physicalists face what is arguably an even harder problem: how can extended matter in motion ever give rise to the seemingly interior experience of conscious thought and emotion? As Galen Strawson has pointed out, even if this “seeming” experience ends up being some sort of illusion, the seeming itself still demands an explanation: “any such illusion is already and necessarily an actual instance of the thing said to be an illusion” (Strawson 2018).
Let us run through the various metaphysical options at play for those affirming standard physicalism, by which I mean any variation on the ontology that posits that the final real things (whether particles, fields, or some other mode of existence yet to be discovered by science) are passively enduring objects entirely devoid of subjective enjoyment and aim. When addressing the place of consciousness in Nature, physicalists generally draw upon three basic explanatory strategies: eliminativism, epiphenomenalism, and emergentism. Many physicalists, in order to side-step patent absurdities, end up tacitly sliding back and forth between two or more of these positions in the course of their explanations of consciousness. Unfortunately, there is little consistency in how these terms are defined in existing literature, hence the need to offer accounts of each position as they are considered for the purposes of this paper.
Eliminativism tries to deny the reality of consciousness outright, arguing that our folk psychological intuitions and self-reports about it are hopelessly misguided and need to be replaced by more mature neurophysiological or computational accounts. While Paul and Patricia Churchland are perhaps the most prominent contemporary defenders of this position (P. S. Churchland 1986; P. M. Churchland 1988), its origins can be traced back to Wilfred Sellars (1956) and Quine (1960). Quine’s reflections on the matter are especially relevant. He raises the question of whether eliminativism truly “repudiates” conscious experiences as factually mistaken, or whether it is meant as a theory identifying such experiences with physiological facts (Quine 1960, 265). He decides that there is no real distinction to be made in this case between explanation and identification. If the elimination of consciousness in favor of physiological processes is the same as the identification of consciousness with correlated physiological processes, all the sudden eliminativism starts to sound a lot like panpsychism, with the crucial qualification that the panpsychist refuses to grant brain matter any special ontological status, as though it instantiated experiential capacities not found to some degree in all physical processes. In Whitehead’s terms: “There’s nothing in the real world which is merely an inert fact. Every reality is there for feeling: it promotes feeling; and it is felt” (Whitehead  1978, 310). In other words, if Quine’s reading is right, Whitehead is also an eliminativist about that sort of consciousness that is imagined to be something extra in addition to physical processes.
More recently, a quasi-transcendental version of eliminativism has been defended under the label of “illusionism” (Frankish 2016). The idea is that we suffer inextricably from what Daniel Dennett calls a “user-illusion” (Dennett 2017, 222). There is really no one home inside, but because we are constitutively blind to the neural basis of our user-illusion, we cannot help but keep knocking on the door. The answer to all our knocking comes only as a bunch of mouth-squeaks signifying nothing (other than more squeaks). We are just a bunch of neurons and chemistry playing out an evolutionary algorithm. “We’re all zombies” (Dennett 2004, 67). Despite his critics, Dennett denies that his version of physicalism is eliminativist (Dennett 2017, 224). His philosophy is a good example of the way the most inventive physicalists end up combining aspects of multiple positions, sliding from eliminativism for questions of ontology to emergentism when it’s a question of the practical functionality of conscious will (Dennett 2003).
Hard core eliminativists like the Churchlands, or like the speculative realist philosopher Ray Brassier (2007), can at least be credited with bitting the materialist bullet by accepting that any physicalism worthy of the name leaves absolutely no room in the universe for anything like what most people mean by consciousness. For Brassier, eliminativism is not just a promising neuroscientific theory of consciousness but a tremendous opportunity for speculative philosophy. Philosophers, rather than acting as “a sop to the pathetic twinge of human self-esteem” by continuing to seek the restoration of a meaningful connection between human consciousness and the cosmic processes that generate it, should instead follow the logic of eliminativism to its admittedly nihilistic conclusions (Brassier 2007, xi). Even if attempts to restore meaning succeed in increasing our quality of life, Brassier still calls upon self-respecting philosophers to reject them, since “thinking has interests that do not coincide with those of living” (ibid.). The eliminativist position can be criticized as self-refuting, since it denies in theory what, short of suicide, one cannot deny in practice (though even the act suicide implies a conscious decision to kill oneself). How can one claim to hold to the view of eliminative materialism if the capacity for holding meaningful views of anything is precisely what the position purports to be eliminating? Brassier responds to the performative contradiction criticism by pointing out that the eliminativist project entails a rejection and replacement of the folk psychological view of ‘views’ or ‘beliefs’ assumed by its critics. Following Paul Churchland, Brassier reduces the propositional meanings and sentential beliefs of folk psychology to the “dynamics and kinematics” of neural activation patterns in the brain (Brassier 2007, 12, 15-17). What it is to hold a particular view (e.g., “Eliminativism is true”) is just for the relevant neural pathways to fire.
While panpsychism may initially affront the common sense of modern Western adults, eliminativism is an even bigger stretch. Of course, the common sense folk psychology of a particular era cannot be given the privileged position of determining metaphysical reality. Whitehead’s process-relational panexperientialism entails a radical revisioning of our common sense understandings of consciousness and propositional meaning. But it does not deny conscious experience outright. Philosophy can reform common sense without eliminating the very possibility of a meaningful life. According to Whitehead, “As we think, we live” (Whitehead,  1968, 63). Thinking is, after all, as natural to the life of a conscious organism as eating or breathing. If our philosophy cannot in the end be squared with the “overpowering deliverances” (Whitehead  1978, 50) of experience and the “concrete affairs of life” (Whitehead  1967, 80), it is a good sign that we have made a wrong turn somewhere in our abstract reasoning. This, at least, is how a pragmatic radical empiricist like Whitehead addresses the matter: “Metaphysics is nothing but the description of the generalities which apply to all the details of practice” (Whitehead  1978, 13).
Epiphenomenalism claims there is room enough for consciousness to be somehow excreted by the brain, but only as a semi-transparent ghost or “inert spectator” (James 1890, 129) with no causal influence over the goings-on of the body or its proximal environment. As formulated most famously by Thomas Huxley, epiphenomenalism is the view that consciousness is “completely without any power…as the steam-whistle which accompanies the work of a locomotive engine is without influence upon its machinery” (Huxley 1875, 62). Epiphenomenalists at least acknowledge the irreducibility of our direct intuition of conscious experience. But assuming a broadly naturalistic and thus evolutionary framework (as Huxley and most contemporary defenders of the doctrine claim to) rules out accounts of epiphenomenal consciousness as sealed off from but nonetheless perfectly correlated with physical processes via a “pre-established harmony” (e.g., Leibniz). Any naturalistic account must explain the causal nexus between mental and physical processes, even if the causal relationships are said to move in only one direction, i.e., physical causes determining an epiphenomenal steam-whistle. Given the requirements of naturalism, the problem with epiphenomenalism is that it is incomprehensible how such a complex ghost-like consciousness could ever have evolved if it serves no function at all for the organism it haunts. If consciousness plays no active role in shaping an organism’s behavior, it cannot be selected for and thus has no role in biological adaptation (T. Nagel 2012, 44ff). As James argued more than a century ago, it is an absurd abuse of scientistic reasoning to assert in the same breath that, while consciousness exists, “all those manners of existence which make it seem relevant to our outward life are mere meaningless coincidences, inexplicable parts of the general and intimate irrationality of this disjointed world” (James 1879, 21). Not only is the view epiphenomenalist view incoherent, the opposed view, that consciousness to varying degrees depending on cerebral complexity “[exerts] a constant pressure in the direction of survival,” grants further plausibility to the Darwinian evolutionary story: “It is, in fact, hard to see how without an effective superintending ideal the evolution of so unstable an organ as the mammalian cerebrum can have proceeded at all” (ibid., 16).
The neuroscientist Michael Graziano attempts to avoid this problem with epiphenomenalism by redefining conscious awareness in neuroscientific terms as “attention” (Graziano 2019). While focusing on the ‘phenomenal properties’ of conscious awareness gives philosophers the impression that subjective experience is some sort of extra ethereal or nonphysical essence (e.g., private ‘qualia’), what Graziano calls an “attention schema” has been scientifically measured in brain-based computational terms (ibid.). The attention schema is the brain’s way of internally modeling certain aspects of its own activity, and our reports and claims about our own consciousness appear to correlate with it (ibid., 101). Graziano thus slides away from the hard problem of consciousness to ask a different question: what sort of neural computations allow us to make claims about supposedly conscious experiences? “In this theory,” writes Graziano, “the ghost in the machine, the consciousness inside us, is a topic of discussion among us only because our intuitions are informed by an attention schema, with its incomplete account of attention” (ibid., 103). While a supposedly ethereal essence would have no way of altering the behavior of an organism, the attention schema serves an adaptive function by monitoring, predicting, and controlling the brain’s attentional resources (ibid., 101). It performs this function in a purely physical way without the influence of any extra-physical consciousness.
While a Whiteheadian approach has its own reasons for being critical of the search for ethereal ‘phenomenal properties’ or private ‘qualia’ (see sections 3 and 4 below), Graziano’s neuroscientific slight of hand gets us no closer to understanding the place of consciousness in the physical world. To start with, consciousness is not merely “a topic of discussion” and cannot be reduced to the sentential claims we make about ourselves and our experience. Whatever else it is, conscious experience of oneself in a world is an immediately intuited concrete fact, not just a linguistic report about or computational model of a fact. Graziano admits he isn’t offering a philosophical answer for how consciousness arises in the brain, but he also implies that his properly scientific approach forces us to accept that “there is no meaningful answer to the question” (ibid., 97). We are just “a biological machine that claims to have a hard problem” (ibid., 96). We are brain networks running a linguistic program whose only power is that it can make claims about itself, statements about what it believes is going on and what its own and other people’s intentions are. These beliefs, claims, and intentions have no bearing on what is actually going on inside the skull or beyond it, since their meanings are epiphenomenal to computations in the brain and the motion of matter through spacetime.
A broader assumption baked into Graziano’s approach is that “the brain is an information processing device” (ibid., 95). This is stated as though it were a truth that neuroscience has discovered, but it is hardly that. It is a theoretical paradigm and a research program, that is, a framework for studying the brain as if it were a computer, not a fact about what the brain is. Other neuroscientists and philosophers of mind reject the computational approach and instead study brain activity from an enactive and embodied perspective (Varela et al.  2016, 44ff; Thompson 2007, 51ff). From an enactive perspective, speaking in terms of decontextualized and disembodied ‘information processing’ going on inside the skull neglects the extent to which meaningful information presupposes an experiential horizon within which it can be interpreted. Evan Thompson extends Gregory Bateson’s claim that “information is a difference that makes a difference” (Bateson  2000, p. 315), adding that information “is the making of a difference that makes a difference to somebody somewhere” (Thompson 2007, 57). Informational meaning is thus embedded not only in the complex dynamics of an experience-imbued brain, but in the sensorimotor networks of the body, and even extends out into the surrounding environment with which the organism is structurally coupled and has co-evolved.
Emergentism claims that consciousness suddenly appears in the universe whenever matter manages to arrange itself into the appropriate dynamical shapes. Some say a simple form of consciousness emerged with the first living cells (‘biopsychism’), while others claim these cells had to blindly organize themselves into large packs of neurons called brains before the light of consciousness could flicker on (‘cerebropsychism’). Still others insist that it was necessary for these brains to become sufficiently entangled in the symbolic network of a language before full-blown consciousness could explode onto the scene (‘anthropopsychism’).
There are weak and strong versions of emergence (Brogaard 2016, 131ff). The higher level capacities of a weakly emergent consciousness are at least in principle deducible from and thus in fact causally reducible to its lower level constituents. Once cognitive neuroscience discovers the relevant underlying brain mechanisms, complicated as they may be, the mystery of consciousness will be understood to have been only an artifact of our limited knowledge. Weak emergence thus presents an epistemological puzzle for physicalism to solve, rather than an ontological impasse forcing it to re-examine its premises. Of course, if weak emergentists do solve the engineering problem of how the brain makes the mind, it is difficult to see how they will avoid sliding back into epiphenomenalism.
Strongly emergent conceptions, in contrast, affirm the ontological novelty of consciousness above and beyond its physical components, even granting it downward causal influence upon the body and surrounding environment. Such a view at least refuses to explain away the evident facts and overpowering deliverances of conscious thought and intention, facts that law, politics, morality, religion, and practical life in general require; facts that even the endeavor to produce scientific knowledge itself necessarily presupposes, for what else is knowledge but a mode of consciousness? As Whitehead quipped, “Scientists animated by the purpose of proving they are purposeless constitute an interesting subject for study” (Whitehead  1958, 16). But unless it can explain how meaning and purpose arise out of mass and energy, strong emergentism lands us right back where Descartes left us nearly four centuries ago, with irreducible mind on one side, brute matter on the other, and no rational account of how they might relate to one another. Focusing on the gradual development of mental capacities from bacterial chemotaxis to Shakespearean poetry over the course of billions of years of biological evolution is an obvious strategy for narrowing this gap. But merely saying ‘evolution did it’ doesn’t cut it, since it wasn’t Darwinian evolution that gave rise to cellular life. Darwin’s theory of speciation by natural selection presupposes self-producing and reproducing organisms, it does not explain them. In Thompson’s terms, “natural selection is an emergent consequence of autopoiesis, not its cause”(2007, 212).
On the other hand, there is a wider definition of evolution than that assigned by Darwin. Whitehead was convinced that evolution had relevance for not just biology but all the sciences, including physics and cosmology. He imaginatively generalized Darwin’s theory such that evolution by the reproductive inheritance of variations checked by environmental pressure became evolution by the rhythmic propagation, or vibratory reiteration, of actual occasions along historical routes, whereby a particular occasion’s conformal physical prehensions of past actualities (=the inheritance of efficient causes) are integrated with its novel conceptual prehensions of future possibilities (=the formal causes of variation) into some emergent enduring pattern of experiential value. Whitehead argued that materialism could not survive its encounter with evolutionary theory., since the former implies merely the “purposeless and unprogressive” rearrangement of externally related substances and their accidental properties, while “the whole point of the modern doctrine is the evolution of the complex organisms from antecedent states of less complex organisms” (Whitehead  1967, 101). “The doctrine,” Whitehead continues, “cries aloud for a conception of organism as fundamental for nature” (ibid.).
Information theoretic accounts of the gap between matter and life provide some hope for a pathway forward, but without incarnating information into the meaningful horizon of experience enacted by living organisms, research programs seeking to analogize brain activity to computation end up having to conceive of information processing as some sort of quasi-conscious homunculus hovering above the neurochemistry of the brain and steering it around. For example, neuroscientists regularly describe information processing in the brain as “goal relevant,” “selective,” and “sensitive” (Sy et al. 2015, 122), all terms implying intentionality and purposefulness, even though the presuppositions of mechanistic biology upon which computational neuroscience rests says such powers are impossible. Luckily, taking information seriously does not require “assuming that abstract properties have physical potency,” as Terrence Deacon put it (Deacon 2012, 192).
Deacon is a strong emergentist who tries to dispel the homunculus and de-etherealize information by describing it not as an extra essence added to the physical but in terms of the “absential” features of an incomplete Nature:
“A counterintuitive figure/background reversal, focusing on what is absent rather than present, offers a means to repair some of the serious inadequacies in our conceptions of matter, order, life, work, information, representation, and even consciousness and conceptions of value” (Deacon 2011, 44).
Information is just what is absent from physically present matter. It is not involved in the push and pull of causal efficacy, but instead ‘constrains’ these physical interactions, acting as a formal and final cause that ratchets physics (thermodynamics) up a contragrade organizational gradient into chemistry (morphodynamics), biology (teleodynamics), and eventually full-blown conscious thought (intentionality). Like the enactivists, Deacon limits information processing to the living world, denying ententionality to the physical and chemical realms. He grants morphodynamic systems the ability to ‘fall up’ negentropic gradients of complexity toward the telic informational processes of living semiosis, but rejects the idea of any aim or value or elán implanted in matter prior to the emergence of life. Telos is added later and not baked in. Not the creative evolution of organisms, but vacuous bits of matter with no internal values…hurrying through space” (Whitehead  1968, 158) are fundamental for Nature.
It is here that the panpsychist integration of physics and experience goes further toward the naturalization of information by making sign interpretation, or in Whitehead’s terms, ‘prehension,’ an intrinsic part of cosmogenesis from the get go. Deacon criticizes Whitehead for projecting “micro humunculi” down to the level of quantum events, arguing that his panexperientialism obfuscates the need for an explanation of “why the [characteristics] of physical processes associated with life and mind [differ] so radically from those associated with the rest of physics and chemistry” (Deacon 2012, 79). Deacon admits that Whitehead in fact does offer an explanation for these differences in terms of the organizational complexity of enduring ‘societies’ of actual occasions of experience that emerge in the course of evolution. “Yet, if specific organizational complexity is what matters, then little explanatory significance is added by the assumption that some level of micro intentionality was suffused throughout all the component processes” (Deacon 2012, 78). While Deacon’s approach succeeds in narrowing the distance between physical causality and conscious intentionality, an explanatory gap still remains. Whitehead’s wager is that this gap is extreme enough to require fully undoing modern science’s “bifurcation of Nature” (Whitehead 1920, 30) by affirming that feeling or prehension is as intrinsic to natural processes as causality. Indeed, Whitehead’s experiential concept of prehension is meant to account for the very possibility of causal relation as such (Whitehead  1968, 164-165): prehension is what allows the real potentiality of the objectified past to pass back into the subjective immediacy of a new actual occasion of experience. Prehension is akin to the ‘information processing’ of computationalists, only it avoids the vagaries of their epiphenomenalism by rendering the detection of form as a process of feeling, thus embodying information in an experiential horizon. While his Philosophy of Organism does grant some degree of mentality to even the simplest of actual occasions, Whitehead’s panexperientialism doesn’t add anything extra to the natural world we find ourselves within: “the operation of mentality is primarily to be conceived as a diversion of the flow of energy” (Whitehead  1968, 168). In other words, mentality is an absential constraint upon energy’s otherwise entropic tendency. Were this entropic tendency the final word in Nature’s becoming, we would not be here to regret the fact. Whitehead is thus attempting to render the true nature of the physical universe transparent to us as the ongoing aesthetic achievement of a vast nexus of experiential occasions: “these unities of existence, these occasions of experience, are the really real things which in their collective unity compose the evolving universe, ever plunging into the creative advance” (Whitehead  1968, 151). Quarks, photons, protons, electrons, neutrons and the like appear to be our most ancient ancestors, close to the “primate organisms” (Whitehead  1967, 132) of our cosmic ecology. Out of their co-evolution emerged atoms, stars, and galaxies, all examples of the complex social achievements of actual occasions.. The evolution of these physical organisms proves that Nature’s capacity for emergent value and organizational complexity long predates the arrival of biological cells. These particle and astronomical organisms may be minimally or maximally conscious. The point is that at whatever scale it occurs, information processing is an experiential process, with the intensity of experience depending on the degree of integration of prehended data achieved by any given society of occasions.
3. The Physics of Experience: Avoiding Inflationary and Deflationary Accounts of Consciousness
“The doctrine I am maintaining is that neither physical nature nor life can be understood unless we fuse them together as essential factors in the composition of ‘really real’ things whose interconnections and individual characters constitute the universe.”
—Whitehead ( 1968, 150)
If physicalists are willing to take seriously the idea that human beings might not really be conscious, perhaps they can grant that it is no more absurd to entertain the possibility that stars and galaxies have minds. If Whitehead’s panexperientialist alternative turns out to have philosophical advantages over scientific materialism, perhaps we can learn to live with its mind expanding implications. After all, if materialism is true, we aren’t really alive, anyway. Another advantage of panexperientialism is that it can help philosophy avoid the excesses of Absolute idealism by not expanding mind too much.
Whitehead’s panexperientialism is an attempt to take consciousness at face value without unduly inflating or deflating its significance in the universe. The most inflationary accounts tend toward Absolute idealism, while the most deflationary tend toward eliminative materialism. The Kantian transcendental or critical approach views consciousness (with its categories of understanding and forms of intuition) as an a priori condition for knowledge of anything, including the physical world. It is thus an important compromise position, holding materialism at bay by preventing us from ever knowing anything about a mind-independent reality, while also checking the mind’s tendency to declare itself the ground of being. Kant admitted that via introspection we can only ever access an ‘empirical me,’ but he nonetheless posited a ‘transcendental I’ or Ego as the necessary correlate of everything thought or experienced, whether in myself (temporal intuition) or outside (spatial intuition). Kant’s transcendental Ego is no longer a clear and distinct substantial reality, as Descartes had imagined when he declared “I am a thing that thinks” (Descartes  1996, 24). So what is it? From James’ radically empirical perspective, the Kantian Ego “is simply nothing: as ineffectual and windy an abortion as Philosophy can show,” for if it be granted any other status, given Kant’s transcendental premises, there is little to prevent the Fichtean and Hegelian move to “call it the First Principle of Philosophy, to spell its name in capitals and pronounce it with adoration, to act, in short, as if [we are] going up in a balloon whenever the notion of it [crosses our] mind” (James 1890, 365). The Kantian compromise is thus an inherently unstable position. It saves mind from ever being reduced to matter, but at the cost of leaving us in total ignorance regarding the transcendental ground of our own consciousness and the substantial reality of Nature. Philosophers are left poised in a vulnerable state of metaphysical indecision, only a moderate dose of nitrous oxide away from floating into the mania of Absolute idealism, and only a mildly depressive mood away from succumbing to eliminative materialism. Might Whitehead’s “organic realism” (Whitehead  1978, 309) put philosophy on more solid experiential ground?
Presented with the general panpsychist hypothesis of a “pervasive perhaps ubiquitous” (Seager 2016, 229) subjectivity inherent in Nature, the first thing the incredulous tend to ask is whether the view entails that stones are conscious, or that tables and chairs stand at attention before us contemplating existence, or that spoons enjoy the flavor of the tea they stir. Few panpsychist philosophers actually uphold such views about stones and human artifacts, at least not without all the necessary qualifications (alchemists and astrologers notwithstanding). The proper panpsychist response to the skepticism of physicalists about the extent of mind’s reach into Nature is to ask whether it is really possible for them to conceive of their own consciousness as an illusion. For if the computational model of mind is true and experience contributes nothing to the functioning of the brain, if our consciousness is really just a complex set of what William Seager calls “bare recognitional capacities” evolutionarily elaborated “into a rich but delusive system of beliefs,” then when it comes down to it we human beings “are actually no more conscious than rocks” (Seager 2016, 231).
Which is more believable? That you and I are no more ‘alive’ than a pile of stones? That we and the stones are merely finite appearances in the eternal substance of the Absolute? Or that stones are more ‘alive’ than we think? From the perspective of Whitehead’s panexperiential organic realism, deflationary materialism and inflationary idealism are equally out of line. What, after all, does contemporary physics tell us about the materiality of a stone?: “[Vanished] from the field of ultimate scientific conceptions is the notion of vacuous material existence with passive endurance, with primary individual attributes, and with accidental adventures”; in short, physics has “[displaced] the notion of static stuff by the notion of fluent energy” (Whitehead  1978, 309). Stones, understood scientifically, are thus more like attenuated energy events whose relative stability is the effect of reiterated vibratory patterns of activity. For Whitehead, “the energetic activity considered in physics is the emotional intensity entertained in life” (Whitehead  1968, 168), though of course the emotional intensity realized in a stone is quite negligible due to the lack of any evolved organization for channeling and amplifying its scattered feelings into the more or less unified consciousness evident in animals. The physicist may retort that these patterns are merely mathematical equations and that we have no scientific basis for attributing experience or anything else concrete to the activity they describe. Indeed, many panpsychists are happy to admit that physics tells us only about the abstract aspects of matter and thus “can’t characterize the intrinsic nonstructural nature of concrete reality in any respect at all” (Strawson 2016, 85). In that case, it turns out ‘matter’ is among the most abstract ideas ever imagined by human minds. But in Whitehead’s way of thinking, this “divergence of the formulae about nature from the appearance of nature has robbed the formulae of any explanatory character” (Whitehead  1968, 154). Energetic activity is not just a mathematical abstraction but an abstract description of something real: “Nature is full-blooded. Real facts are happening” (Whitehead  1968, 144). Further, unlike some panpsychist readings of Russell’s neutral monism (Russell 1927), Whitehead’s process-relational rendering doesn’t claim experience is a ‘primary attribute’ or ‘intrinsic property’ of matter. This is because in Whitehead’s view, physics has moved beyond the substantialist view of matter, and talk of essential or accidental properties only made sense given such an ontology. The twentieth-century quantum and relativistic revolutions in physics dispensed with the ideas of “simple location” (Whitehead  1967, 51) and “nature at an instant” (Whitehead  1968, 145). There are no simply located, instantaneously present material particles or configurations of material particles, just as there are no simply located, instantaneous experiential states or properties. Both energy and experience are activities with fuzzy boundaries, and our panpsychist ontology should reflect this fact. Yet the substance-property ontology is difficult to shake, even for the physicists who know very well that it no longer captures what their equations are describing. The substance-property mode of thought is pervasive in Western philosophy. Descartes, so critical of Aristotle for other reasons, is fully infected by it, and many contemporary analytic philosophers who similarly consider their thinking to be free of any unexamined tradition nonetheless continue to construe reality in its terms. This mode of thought comes naturally since it is woven into the subject-predicate grammar of most of our languages. It is no surprise that Whitehead’s process-relational alternative is at first difficult to grasp.
While there was an “essential distinction between [substantial] matter at an instant and the agitations of experience,” with this conception of matter having been swept away, a door is opened to analogies between energetic activity and concrete experience (Whitehead  1968, 115). Experiences, like energy vectors, are intrinsically process-relational in that they always involve transition beyond themselves: they manifest in a “specious present” (Whitehead  1967, 104) as a tension between the actualized facts of an inherited past and the potential forms of an anticipated future. Whitehead turns to our own lived bodies for a more concrete characterization of physical process, since it is the human body that “provides our closest experience of the interplay of actualities in nature” (Whitehead  1968, 115). In addition to the grammar of our language, our visual experience of the immediately presented world reinforces the scientifically mistaken idea that reality is composed of substances with qualities. The grey stone is one of Whitehead’s favorite examples: ancient Greek philosophers perceived “the grey stone” and from that simple observation “evolved the generalization that the actual world can be conceived as a collection of primary substances qualified by universal qualities” (Whitehead  1978, 158). Modern natural philosophers beginning with Galileo elaborated this ontology into a conveniently bifurcated system of primary objective quantities (mass, velocity, dimensionality, etc.) and secondary subjective qualities (color, taste, value, etc.). Descartes’ mind/body dualism finished the job. Thenceforward it is not the stone that is grey, but the private quale of the perceiving subject that is grey. The stone itself is just an extensional lump obeying the fixed laws of gravity and chemical decay. Scrubbing Nature clean of all qualitative residues and tucking them safely away within conscious subjects allowed modern science to make truly remarkable progress explaining those aspects of Nature amenable to precise measurement and mathematical description (Goff 2017b, 12-14). But after a few hundred years of world-transforming progress, this powerful methodology still finds itself embarrassed by the hard problem. Consciousness appears to be “a strange intrusion into an otherwise well-behaved world” (Seager 2016, 234), though of course, it can hardly be said to have intruded if it was the methodology of modern science itself that initially excluded it from the physical world. Limited to the precise measurements afforded by strict sense-perception and to mathematical modeling, science finds no enjoyment, aim, or creativity in Nature, “it finds mere rules of succession” (Whitehead  1968, 154). But this is because, by design, science deals with only half the evidence of human experience.
In addition to the relatively superficial affordances of sense-perception granted us by the five outward facing senses, what Whitehead calls “perception in the mode of presentational immediacy” (Whitehead  1978, 121), he also describes a more primordial form of bodily experience or “sense-reception” (ibid., 113-114) referred to as “perception in the mode of causal efficacy” (ibid., 120). It is this latter form of human experience that modern science has all but ignored. When our eyes are functioning normally, they are transparent to the world. Nonetheless, it is evidently true that we see with our eyes. Causal efficacy is the feeling of our eyes blinking when we pull back the curtains and the sunlight floods onto our face. Presentational immediacy is the view of the meadow out the window after our eyes adjust. While presentational immediacy grants us perception of the grey stone as a geometrically projected patch of color, causal efficacy grants us perception of the grey stone’s weight when we pick it up in our hand, of the way this weight influences the muscle fibers and nerve endings in our arm as, “by channels of transmission and of enhancement” (ibid., 119), its ‘weightiness’ is delivered to the presiding occasions of the brain wherein we consciously feel it. “It is the accepted doctrine in physical science,” Whitehead tells us,
“that a living body is to be interpreted according to what is known of other sections of the physical universe. This is a sound doctrine, but it is double-edged. For it carries with it the converse deduction that other sections of the physical universe are to be interpreted in accordance with what we know of the human body” (ibid.).
Modern physics tells us that “the quiet extensive stone” is more complex than it at first appears to be. Were we able to apprehend the stone in a more direct way than that afforded by visual perception, it would reveal itself as a “society of separate molecules in violent agitation” (Whitehead  1978, 78). Picking up the stone grants us no more insight into its inner life, but the feeling of its weight in our hand grants us a clue with profound metaphysical implications. Our consciousness is not separate from but “intimately entwined in bodily life” (Whitehead  1968, 21). We consciously feel the stone because the human body, acting as an experiential amplifier, transmits the stone’s energetic activity along coordinated routes of actual occasions, accruing interpretive enhancements along the way, until the activity achieves final integration in a central occasion of experience. “The human body is thus achieving on a scale of concentrated efficiency a type of social organization, which with every gradation of efficiency constitutes the orderliness” found in the wider universe (Whitehead  1978, 119). Transmission of feelings within the body can thus be understood as analogous to the transmission of energy occurring in the rest of Nature. The body, after all, is part of and continuous with the rest of the external world, “just as much part of nature as anything else there—a river, or a mountain, or a cloud” (Whitehead  1968, 21).
Those seeking a truly naturalistic account of consciousness needn’t rush to deflationary explanations, whether eliminativist, epiphenomenalist, or emergentist. Such deflationary accounts would be understandable if the only alternatives available were dualism or idealism. Panpsychism, especially Whitehead’s panexperiential version, provides another option. It avoids the metaphysical travesty of dualism, the inflationary conjecture of idealism that “nature is mere appearance and mind is the sole reality,” and the deflationary conjecture of materialism that “physical nature is the sole reality and mind is an epiphenomenon” (Whitehead  1968, 150). It begins its explanation of consciousness modestly by examining our intimate feelings of bodily inheritance, and it concludes that these feelings provide a clue as to the functioning of energy in the rest of Nature. The conclusion may seem strange at first, but the philosophical payoff might just be worth it.
4. The Combination and Decomposition Problems for Panpsychism and Cosmopsychism: Bugs, or Features for Whitehead?
The philosophical payoff of panpsychism is that it dissolves the hard problem of consciousness, giving experience its proper place in Nature without undermining the scientific image of the universe. Indeed, panpsychism may have important advantages over materialism for interpreting contemporary physical cosmology (Segall 2018). But substance-property panpsychists have their own problem to deal with: the combination problem. Does Whitehead’s process-relational approach help solve it?
The solution to James’ original statement of the combination problem is already in James’ own statement: there is a 101st feeling, a “totally new fact,” and “the 100 original feelings might, by a curious physical law, be a signal for its creation, when they came together” (James 1890, 160). Whitehead’s process-relational ontology, in particular his genetic account of mutually sensitive prehensions (Whitehead  1978, 235ff), is an attempt to make good on James’ psychological insight by building it out into a coherent cosmological scheme.
Whitehead is neither a micropsychist nor a cosmopsychist exclusively. He tries to have it both ways. There is a universal soul, a psyche of the cosmos, a God of this world, and there are countless creatures creating in concert with it. Creativity transcends both, it is the source of all evolving parts, wholes, bodies, and souls. For Whitehead the combination problem becomes a logic of concrescence, a way of thinking change as more than just the rearrangement of pre-existing parts or the fragmentation of a pre-existing whole but as a genuine becoming, as an “emergent evolution” or “creative advance” (Whitehead  1978, 21, 30, 229) where neither wholes nor parts pre-exist their relations. Whitehead’s account of process is an account of combination and decomposition, of conjunction and disjunction. Process means the growing together of many objects into one subject, and the perishing of that subject back into many as a superject: “The many become one, and are increased by one” (ibid., 21). Concrescence is a cumulative process and not merely an additive one.
5. The Wonder Remains
“Philosophy begins in wonder. And, at the end, when philosophy has done its best, the wonder remains. There have been added, however, some grasp of the immensity of things, some purification of emotion by understanding.”
—Whitehead ( 1968, 168-169)
Whitehead is thus clearly an emergentist rather than constitutive panpsychist (Goff 2017a, 114). But it’s not that human consciousness is breaking the laws of physics, it’s that Nature’s ‘laws’ are queerer than our mechanical models let on. Like Deacon (2012) with his absential constraints in an incomplete Nature, Whitehead’s knowledge of mathematical physics led him to reject the causal closure of physics. Laws are habits emergent from the social activity of actual occasions of experience, not divine decrees from heaven imposed upon dead matter. But unlike Deacon, Whitehead goes further by granting life and mind some subtle congress with things from the beginning of time. Indeed, without life and mind Nature would have no time to evolve. The laws of physics are indifferent to life, mind, and time, so the show would be over before it even began.
Human consciousness is the achievement of the human body. The human body is the organizational achievement of a nexus of experiential occasions stretching back billions of years through the evolution of life on Earth, the birth of our Sun and planetary system, and the fusion of quarks into baryons, back even to the birth of God (Whitehead  1978, 348). Consciousness is human physics. Our philosophical conceptions, moral decisions, aesthetic creations, and religious concerns are not violations of the laws of physics (which are really statistical habits, anyway), no more so than the emergence of stars and galaxies was a violation of particle physics, or the emergence of cellular life was a violation of geology. “[Nature] is never complete. It is always passing beyond itself” (Whitehead  1978, 289).
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Below is the introduction of paper I presented at a conference in L’aquila, Italy in April 2019. The conference aimed to revisit important philosophical issues related to the famous 1922 debate between Einstein and Bergson. HERE is the conference site (it is in Italian, so you’ll need to ask Google to translate it for you).
Time and Experience in Physics and Philosophy
“What is Time?” Bergson-Einstein Conference in L’Aquila, Italy April 4-6, 2019
By Matthew D. Segall
“What is time?” Reflecting on this ageless question stretches my imagination in several directions: I first consider the time of my own most direct and intimate experience of being alive: I was born, I live and age, and I will die, necessarily in that biological order. Each year, I watch as winter frost melts to make way for spring flowers. My interest in fundamental physics then leads me to ponder the paradoxes of relativity and quantum theory: I wonder what, if any, significance my personal biography has given the deterministic mechanism and time-reversibility of Nature’s fundamental laws. I reflect on whether my experience of seasonal rhythms is reducible without remainder to the mechanical effect of a slight tilt in the rotation of our dust mote planet as it revolves in warped space-time around a massive ball of radiating plasma. Finally, my incurable philosophical itch compels me to search for some more general metaphysical scheme or wider interpretive context within which the laws of physics might find a place alongside lived experience.
It is this quest to understand time that has brought us together for today’s conference. Physicists, theologians, businessmen, philosophers, artists—really all thoughtful human beings—have at one point or another been struck by this question and struggled to answer it in their own terms. Nearly a century ago, time was at the center of Einstein and Bergson’s debate in Paris. Centuries earlier, another influential intellect, Ben Franklin, had tried to settle accounts: “Time is money.” Centuries earlier still, Augustine had to confess that he did not know what time is (though he offered a few conjectures). And Plato, as he stared in wonder at the stars above him while inwardly contemplating the perfections of geometry, offered at least a likely story: time is a moving image of eternity.
The passage of time is both inescapably obvious and profoundly mysterious. Nothing gets to the heart of who and what we are more than time. Stars ignite, burn their atomic fuel, and go supernova, creating the heavier elements needed for conscious lifeforms like us to take shape. We are born, we age, we die. Civilizations rise and fall. None of these processes is intelligible in reverse. And yet, there has been a strong consensus among physicists for at least a century that the time of human experience, let us call it “phenomenal” or “lived time,” is, as Einstein once put, a “stubbornly persistent illusion.” Everyday time is not at all what it appears to be. As Augustine admitted, time is plain as day until someone asks us to explain how it works: suddenly, we find ourselves having a hell of a time trying to make any sense of it. A recent New York Times article chronicled the growing controversy (and confusion) about seasonal changes in clock-time, so-called “daylight savings” time.1 Back in the 1920s, changes to local clock-times in US cities like Boston and Detroit led some residents to worry that an extra hour of sunlight in the evening would dry up their gardens and disturb their farm animals. The article quotes Michael Downing, author of Spring Forward: The Annual Madness of Daylight Saving’s Time (Counterpoint, 2005):
“The idea of losing or gaining an hour is itself such a fantastically bad philosophical proposition that nobody knows what they’re talking about…Most people don’t even understand whether moving the clocks forward gives them more sunlight or less sunlight in the morning. They just can’t remember what it does, because it so defies logic.”
As if the time of everyday experience wasn’t strange enough already, in the equations of physics— whether classical, relativistic, or quantum—it doesn’t even matter which direction time flows, if it can even be said to “flow” at all. The one exception, perhaps, is the 2nd law of thermodynamics, to which I return later.
I cannot promise that the paper to follow won’t make an even bigger mess out of time. I can only offer a few potential pathways through the thicket in the hopes of finding some new perspectives on a very old question. I first revisit the crucial bifurcation between natural science and human experience that has informed not only our views of time but so much of modern thought and culture. Alfred North Whitehead will be my principal guide in this endeavor. Along the way I distinguish Whitehead’s process philosophy from Henri Bergson’s understanding of temporality. Though Whitehead affirmed much of Bergson’s critique of scientific materialism, he departs in crucial respects from the Frenchman’s vitalism. Finally, I draw Whitehead into conversation with the work of loop quantum gravity theorist and popular science author Carlo Rovelli. While the convergence is by no means complete, I believe there are some hopeful signs in Rovelli’s professed natural philosophy that align him with Whitehead and thus bring us closer to a philosophical reconciliation between human experience and the Nature known to science.
Continuing the discussion about “panpsychist physicalism,” I’m sharing another one of my replies over at The Skeptical Zone (click here to read what I am responding to).
Thanks for the reply, keiths. Of course, everything depends on what we mean by physicalism. “Scientific materialism” is a phrase I borrow from Whitehead to refer to an outdated sort of physicalism that has not yet fully internalized relativity, quantum, and complexity theories. Despite these 20th century paradigmatic revolutions in physics, most popular accounts of physicalism still describe matter as “stuff” with simple location in space that is fully present at an instant in time and that can be exhaustively explained by reduction to its parts. Following a full reckoning with relativity, quantum, and complexity theories, this view of matter must be entirely rejected. Do we agree so far?
You say there is no evidence of purpose in physics. I would agree that there is nothing like deliberative decision-making of the sort most of us believe human beings are capable of. However, right at the base of physics in what Eddington called “the supreme law among the laws of nature”–namely, entropy–we see that energy displays a clear directionality and thus a form of teleology toward greater global disorder (Stan Salthe makes the case for this sort of interpretation). As complexity theorists studying far from equilibrium systems have argued (e.g., Ilya Prigogine, Eric Smith), this tendency toward global disorder can actually facilitate the local emergence of greater organization (e.g., the temperature gradient between the Sun, deep space, and Earth’s surface leads inevitably to the emergence of life, which dissipates this gradient way more efficiently than would non-living chemistry).
So I challenge the idea that physics shows no evidence of telos. There is plenty of empirical and theoretical evidence for it if it hasn’t been ruled out a priori by a metaphysical distaste for final causation.
The idea that special arrangements of fundamentally purposeless, inert, insentient particles could give rise to even non-conscious feeling, experience, or an inward perspective on the world (i.e., something it is like to be a thing) strikes me as nothing short of a miracle. The idea that such arrangements could give rise to living creatures with conscious intelligence capable of understanding the fundamental nature of the universe strikes me as absolutely absurd. It’s not just that I find these notions incredible, it’s that I have never seen a causal explanation for how this sort of emergence (even if “weak”) might work. I cannot even imagine what such a causal explanation might look like.
After speaking at the 9th International Whitehead Conference last fall in Krakow, Poland, I was invited to help organize a track for the 2015 IWC in Claremont, CA next summer (June 4-7). The 2015 conference is called “Seizing an Alternative: Towards an Ecological Civilization” and is largely the brain child of process theologian and environmental philosopher John Cobb, Jr. Plenary speakers include Cobb, Bill McKibben, Vandana Shiva, Brian Swimme, Catherine Keller, Herman Daly, and David Ray Griffin. The conference will be divided into 12 topical sections, with each section including 4 or 5 tracks. My track is in section 3, “Alienation from Nature: How It Arose,” and is called “Late Modernity and Its Reductive Monism.” For a brief description of the proposed focus of this section and its sub-tracks written by Cobb, click HERE.
In his proposal for my track, Cobb writes:
Rene Descartes, who developed the Enlightenment vision most profoundly and influentially, is known especially for his radical dualism of the human soul, on one side, and mere matter in motion on the other. Although this carried the alienation from nature to its extreme, it gave dignity to human beings. It supported the ideas of human rights and even of a fundamental equality of all. However, in the nineteenth century, Charles Darwin showed that human beings are a product of evolution, so that they are fully part of nature. This opened the door to re-thinking nature as having some of the properties Descartes attributed to the human soul. But the commitment of the sciences to methods associated with nature’s purely objective existence was very strong. Instead of changing the approach to the rest of the natural world, scientists chose to study humans in the way they had previously studied the objects of human experience. Enlightenment dualism was replaced in late modernity by reductionist monism. The Enlightenment led people to understand themselves as responsible citizens. The new reductionistic monism represents us as laborers in the service of the economic system.
To re-phrase, my track will focus on the way that the classical Enlightenment dualism between morally responsible human souls and a morally neutral mechanical nature has, in the late modern period, been replaced by a pseudo-materialistic monism. Descartes was the first to articulate this dualism in its modern form. His attempt at a clean break from traditional dogmas by re-grounding human rationality on our own self-evident powers of reflective self-consciousness was an essential factor in the Western world’s later revolutionary struggles for individual political freedom. Without Descartes and those who followed in his wake (especially Locke and Kant) there would be no Modern philosophy, obviously, but nor would there have been a French or American Revolution. The dualistic ontology of spiritual human vs. mechanical matter, though unsuited for (and in some sense the cause of) our present ecological nightmare, was for an earlier epoch a catalyst for democratic liberation from the oppressive theocratic monarchies of the medieval world. Nowadays, since the dominant ontology has devolved into a confused monist materialism (which Latour deconstructs and re-assembles in AIME), the democratic political ideals of the Enlightenment are increasingly being called into question by neoliberal economists and reductive neurobiologists, among others. If there is no such thing as a soul, there is no such thing as freedom, no such thing as moral responsibility to other human souls, and so no real justification for democratic self-governance. If we are really just selfish desire-machines blindly designed by the Darwinian struggle for consumption and reproduction called Natural Selection (nature’s “invisible hand”), then, following the neoliberal capitalist approach, the best form of governance is that orchestrated by well-trained technocrats and social engineers, those who know how best to keep the civilizational machine running smoothly.
The discoveries of deep time and biological evolution that emerged during the course of the 18th and 19th centuries dealt the death blow to substance dualism, forcing humanity to make a fateful ontological decision: either, as Cobb puts it, (1) re-imagine nature as in some way ensouled, or (2) re-think the human soul as somehow mechanical. In the 20th century, Western techno-science committed itself to the second project: human society and the earth itself were to be re-made in the image of the machine (if ancient cosmologies suffered from anthropomorphism, modern cosmologies suffer from mechanomorphism). Our early 21st century world, with its exploding economic inequality and ecological unraveling, is the near ruin lying in the wake of that decision.
Whitehead stands out among 20th century philosophers, not for his revolt against techno-scientific reductionism (certainly, Heidegger and Merleau-Ponty were just as dedicated to resisting it), but for his decision to have a go at project #1. As I describe in my essay on Whitehead’s relevance to contemporary cosmology Physics of the World-Soul (2013), Whitehead’s response, not only to 19th century evolutionary theory, but to 20th century quantum and relativity theories, was to re-imagine, in process-relational terms, the relationship between the interior psychical and exterior physical worlds. That conscious human experience is continuous with the rest of an evolved nature is clear enough; but Whitehead argues that we cannot think coherently of this continuum in an eliminatively materialist way, as though consciousness could be explained by reduction to something entirely dumb and numb, unintelligent and unfeeling. If we are to remain civilized, we must take knowledge and love seriously as having a real effects on the course of human history. To take human knowledge and love seriously requires that we root these powers ontologically, that we ground them in the energies of cosmogenesis itself. Otherwise they are mere passing fantasies, cultural figments to be reduced to the neurotic mechanics of our brains and controlled by techno-scientific specialists.
The results of the modern world deciding in favor of project #2 are detailed by Whitehead toward the end of Science and the Modern World (1925):
[All] thought concerned with social organization expressed itself in terms of material things and of capital. Ultimate values were excluded. They were politely bowed to, and then handed over to the clergy to be kept for Sundays. A creed of competitive business morality was evolved…entirely devoid of consideration for the value of…life. The workmen were conceived as mere hands, drawn from the pool of labor. To God’s question, men gave the answer of Cain– “Am I my brother’s keeper?”; and they incurred Cain’s guilt (181).
Participants in my track will have an opportunity to draw on Whitehead, as well as other congenial thinkers, in an effort to both critique late modernity’s reductive monism and to re-construct a more viable ontology for a future ecological civilization. I’ll continue to post updates about the shape of the track as the conference date approaches.
I’m participating in a reading group with about 40 other scholars focusing on Bruno Latour‘s recently published book An Inquiry into Modes of Existence: An Anthropology of the Moderns (2013). This week it is my turn to comment on Ch. 4, which is titled “Learning to Make Room.” I’m going to cross-post my comments here, as well as on the blog we’ve set up for the reading group (aimegroup.wordpress.com). If you want to respond to anything I’ve said here, please do so on the AIME group blog so that all the comments will be assembled in the same place.
Introducing the Beings of Reproduction,
Instituting ‘A Whole New Diplomacy’
by Matthew David Segall
In chapter 4 of his inquiry into modes of existence, Latour begins the difficult task of appropriately enunciating how it came to be that the Moderns, despite having conquered the whole world, still lack the room to deploy the values––legal, moral, fictional, political, economical, spiritual, psychological––that they so cherish. Even the values of physical science became impossible to localize and equip after the entire earth and sky were submerged in an abstract space-time filled by the mathematical motion of matter-energy. Where, it must be asked, is the Mind that measures, calculates, and understands the infinite system of the Universe standing? On whose authority was this Mind granted access to the Ideas at work in Nature? Latour’s inquiry into the modes of existence cannot even begin until after the Cartesian Constitution leading us to repeat such poorly posed questions has been torn to shreds.
There is hope for the values of the Moderns, if only they are willing to give up all the bad habits and confused composites that come along with the “institution of matter” (118). Ecologizing Modernity will require instituting “a whole new diplomacy” (103) adequate to a pluriverse in which neither Nature nor the Mind can be said to exist. The alternative non-Naturalist, non-Idealist Constitution that Latour is trying to enunciate has summoned many modes of existence to the negotiating table. In chapter 4, Latour introduces us in particular to the beings of reproduction [REP]. He also attempts to disamalgamate the poorly formed composite causing a confusion of the beings of reproduction with the immutable mobiles of reference [REP ~ REF]. This confusion is the “double category mistake” through which “the notion of ‘matter’ emerges” (110). Poor Descartes gets blamed for more than his fair share of philosophical damage (we might at least admire his genius before we shame him for his mistakes), but Latour cannot avoid dating the emergence of the idea of matter to his (in)famous meditations. After Descartes, the Modern world “[begins] to believe that the thought of matter describes real things, whereas it is only the way the res cogitans–itself dreamed up–is going to start imagining matter” (110).
Imagine instead that the nascent, still scattered people of Gaia are waking up from Descartes’ dream. Imagine that the flood of Materialism has receded, and that all the faux battles waged by “spiritualists” against “reductionists” have grown quiet for lack of interest. Imagine you are an Earthling once again, returned from outer space to re-inhabit the solid ground of common sense experience. The interlacing ecological complexity of our common sense world of earth and sky, of plants, animals, and persons, makes the mathematizable quantum and relativistic realms of science look like “child’s play” in comparison (120). The world of common sense experience is more unfathomable, more mysterious, than the micro- and macroscopic worlds described by physicists, since, as Latour reminds his readers, the former “has been infinitely less explored than the other!” Latour wants to re-introduce Moderns––a people so obsessed with their theories of matter that they’ve entirely neglected the material practices that make these theories possible––to the beings of reproduction [REP] that, for several centuries now, have been so rudely silenced by the bizarre institution of matter. One of these beings, Gaia––no longer content to remain the unacknowledged background of human history––is now intruding to return the favor by rudely ignoring the Modern pretension to a risk free, double-click Science that might grant total control over a 3+1 dimensional world, as if this world were made of pure “knowability” (112, 121). Such a world would leave no room for life. Luckily, Gaia is no homogeneous substance or geometrical form, but a proliferating ecology of expressive, inventive, and active beings, each of whom, like us, is at risk from moment to moment of disappearing forever should they fail to be articulate, original, or insistent enough to subsist as themselves in an environs swarming with differences (99-101). Latour introduces us to the beings of reproduction [REP] so that the “matter” of materialism, “the most idealist of the products of the mind,” can be de-idealized (106).
Even the so-called “inert” entities of the inorganic world forcefully insist and express themselves. The concept of “force” that has proven so irreplaceable to physicists in their study of microscopic particles and far away galaxies is, we should remember, a concept that emerges from and gains its meaning only by continual reference to experience, to our feelings of attraction or repulsion, of being forced, in one way or another, by the insistent presence of an other. As Schelling, speaking to the Newtonian scientist, wrote in his Ideas for a Philosophy of Nature (1803),
“you can in no way make intelligible what a force might be independent of you. For force as such makes itself known only to your feeling. Yet feeling alone gives you no objective concepts. At the same time you make objective use of those forces. For you explain the movement of celestial bodies–universal gravitation–by forces of attraction and maintain that in this…you have [a physical ground of explanation for] these phenomena” (transl. by Harris and Heath, CUP, 1988, p. 18).
In point of fact, experience can grant us no such physical principles, if by “physical” it is meant that which exists “outside” experience, in the so-called “external world” of mute matter in motion. All our scientific knowledge of distant quasars and black holes hits its mark, not because the Mind has correctly represented the formal essences of Nature, but because our organism (equipped with its world-wide network of geometrical notations, telescopes, satellites, computers, and well-trained peers) has succeeded in translating the lines of force at work outside itself into the feelings of life at work within itself. All our knowledge, no matter how abstract, must make its final appeal in the courtroom of experience, since the court of Reason, having disavowed the the facts of feeling involved in all its acts of knowing, has as a result been cut off from its only means of concrete relation to reality. If everything were submerged in abstract “space-time/matter-energy,” science could never follow the threads of experience, could never arrive at the immanence of a truly de-idealized material (106).
It is not entirely clear at this point if Latour is willing to follow Schelling and Whitehead all the way to a full-blown panexperiential ontology. But what is obvious is that the beings of reproduction [REP], whether physical “lines of force” or biological “lineages,” do not mutely persist like undead zombies: to keep on existing as material existents, they must loudly insist that their values matter. Else they risk extinction. There is no “blind necessity” maintaining the substance of these beings. They can never rest inertly in a simultaneous sameness, nor can they succeed at succession through mere inertial momentum. The beings of reproduction must continually re-produce themselves by passing into and through others, taking little leaps to cross the hiatuses punctuating this world at every twist and turn of its becoming. These tiny transcendences force beings to risk passing through each other in order to remain in existence as themselves: “To obtain being, otherness is required. Sameness is purchased, as it were, at the price of alterations” (110).
When Science forgets the beings of reproduction [REP] by confusing them with its own mode of existence [REF], the formal knowledge produced and employed by it begins to seem as though it dropped into the minds of scientists from heaven. Luckily, the careful practice of scientific abstraction can easily be shown to be a concrete job at every step (110). The material universe referenced [REF] by Modern Science is not made up of objective facts that might speak for themselves and so put an end to every human debate (119). Rather, scientific knowledge “is the labor of a whole chain of proof workers, from those whose hands are black with dirt to those whose hands are white with chalk” (110). Science is a local practice, after all. Its knowledge [REF] is relative to the subsistence [REP] of its networks. Scientists––including their “languages, bodies, ideas, and institutions” (102)––are beings of reproduction [REP] contingently composed and recomposed from moment to moment by the same lineages and lines of force they pretend to study as “matter” whenever it appears “outside” themselves. We need not fear the eternal silence of infinite space, nor the mute mindlessness of inert matter. No, we have never been Modern, we have never lived in a geometrical space, and “this whole matter of matter has to have remained just a simple mind game” (117). We can imagine another, more coherent world: a world that leaves us room not only to think, but to breathe, to live. If we grow sensitive again to the multitude of earthly existents within and around us–to the swarming differences articulating the face of Gaia–maybe we can annunciate an ecological alternative to Modernity before it is too late, before the “grave events” (122) already expected of the coming century ramify so severely that the adventure of civilization has its unacknowledged ground pulled out from beneath its feet. Perhaps Hegel was partially right: after several thousand years of self-negation, human history has reached its end. But it has ended only so the Moderns (or the people who come after them) might reawaken to the multi-billion year geostory they have been sleepwalking through.
So, can we follow Latour’s diagnosis of the “sort of coherent madness” (115) motivating Modernity’s mistaken amalgamations and bifurcations? Are we ready to give up the Mind of Science, with its universal Knowledge and its obedient Nature, in exchange for the far messier pluriversal practices of the well-equipped sciences? Are we willing to welcome the lively beings of reproduction back to the negotiating table, or must we continue to drown out their multiplex voices in a Flood of res extensa-cogitans (112)? Are we ready yet to grasp the modes of existence, not as different representations of the same underlying reality (that discovered and described by Science), but as uniquely enacted realities, each in their own right?
- Schellingian Reflections on Latour’s 2nd Gifford Lecture – “A Shift in Agency, With Apologies to Hume” (footnotes2plato.com)
- Bruno Latour’s 1st Gifford Lecture – “Once Out of Nature: Natural Religion as a Pleonasm” (footnotes2plato.com)
- Latour’s 4th Gifford – “The Anthropocene and the Destruction of the Image of the Globe” (footnotes2plato.com)
- Physics of the World-Soul: The Relevance of Alfred North Whitehead’s Philosophy of Organism to Contemporary Scientific Cosmology (footnotes2plato.com)
“The function of Reason,” says Whitehead, “is to promote the art of life” (4). Reason thereby becomes primarily an aesthetic concern, a matter of appetition, and of the appetition of appetition with “emphasis upon novelty” (20). Reason is not simply the art of surviving, but of living well, and living better.
If some degree of life is active at every level of nature (the boundary between organic and inorganic being endlessly blurred), selective appetition–or Reason–would also then be active not only in the evolution of earth-bound plants, animals, and humans, but in the formation of the material cosmos itself.
“The material universe has contained in itself, and perhaps still contains, some mysterious impulse for its energy to run upwards,” says Whitehead (24).
What is the “upward trend,” the “counter-agency” that is already necessary to account for the genesis of those organized beings known to science as protons, electrons, molecules, stars, and galaxies? From whence comes the purposiveness of nature, the urge towards higher forms of organization despite the equally real tendency towards decay and fatigue? For Whitehead, the counter-agency to entropy is Reason. “Reason is the special embodiment in us of the disciplined counter-agency which saves the world” (34). Reason is then not only the presupposition of civilized human society and the ground of our scientific knowledge of nature, it is the creative source of the cosmic order itself.
“Mankind has gradually developed from the lowliest forms of life, and must therefore be explained in terms applicable to all such forms. But why construe the later forms by analogy to the earlier forms? Why not reverse the process? … In the course of evolution why should the trend have arrived at mankind, if his activities of Reason remain without influence on his bodily actions?” (15, 27).
Whitehead reverses the typical evolutionary epistemology that would attempt to explain away human consciousness and Reason by reducing them to seemingly inanimate physical and chemical processes. Instead, he attempts to understand the simplest processes of the physical universe in terms applicable to the presuppositions of civilized human life. His cosmologizing begins with what science must assume in all its investigations into nature, namely that human consciousness is capable of rational reflection upon the facts as observed. The human being is the primary instrument of all scientific investigation: we cannot separate the consciousness of the scientist or the purposeful process of his or her research from the scientific knowledge that is produced. The knowledge claimed by materialistic science that life is a mere mechanism governed by physics, chemistry, and the absolutely purposeless pressures of natural selection undermines this science’s own epistemic foundations. If unconscious Reason were not already rooted in every cosmic process, its conscious form could never have flowered in human scientists. To argue otherwise is to fall victim to blatant self-contradiction by denying in theory what no one can deny in practice. “Scientists animated by the purpose of proving that they are purposeless constitute an interesting subject for study,” says Whitehead (16).
- Reflections on Thomas Nagel’s mentions of Schelling and Whitehead in “Mind and Cosmos” (footnotes2plato.com)
- Vitalism in Philosophy: “The stars are the fountain veins of God.” -Böhme (footnotes2plato.com)
- Huffington Post Blogger Appears to Engage in Blatant Confirmation Bias and Scientism (rockandrollphilosopher.wordpress.com)
- Teleology in Science? Purpose in Nature? (footnotes2plato.com)
- Can Reason Be Understood Naturalistically? More Notes on Nagel (maverickphilosopher.typepad.com)
“Scientists, animated by the purpose of proving they are purposeless, constitute an interesting subject for study.” – A. N. Whitehead
This is a round table discussion called “Moving Naturalism Forward.” So far it is somewhat infuriating. There is no one there to problematize who should speak for nature. All of these dudes have signed the Modern Constitution (Latour) bifurcating culture (which is illusion) from nature (which is real). Couldn’t they have invited one thinker who wasn’t there just to preach to the scientific materialist choir? At the table are big names like Richard Dawkins, Dan Dennett, Owen Flanagan, Sean Carroll, Jerry Coyne, Steven Weinberg, and Terrence Deacon. Have a look…
And then there is part 2, lead by Alex Rosenberg, where the basic constituents of reality are laid out. When the ontology of mathematics begins to be discussed, suddenly all the hardcore physical reductionists start sounding like mystics! Then there is the lack of teleology in physics and biology, which most of those present deny or radically qualify in some way. In regard to natural purposes, I think their is much these guys could learn from Whitehead’s philosophy of organism. Teleology, as I have learned to think about it, concerns what Whitehead called potentiality (and Deleuze called virtuality). Its not a matter of pre-conceived ideas waiting in the sky to be actualized as poor copies by earthly creatures. Its a matter of the actualization of relevant possibilities, where relevance depends entirely on contingent historical facts. Whitehead’s reaction to 20th century (quantum and relativistic) physics was to see the so-called “laws of nature” as evolved habits still in the process of generating themselves. By getting rid of purpose outright, as many on the panel want to do, these guys end up undermining their own epistemic position as scientists in pursuit of the truth, or at least probability or approximate knowledge of it.
Part 3 was introduced by Terrence Deacon, who I found myself appreciating even more than I had before because I got to see him in his natural habitat (=”mad dog” greedy physical reductionists). His idea of irreducibly complex hierarchical constraints is not as cosmological and organic and realist as I’d like to see, but in the intellectual community of atheistic scientists that he interacts with on a daily basis, standing up for the intrinsic values of life irreducible to functions of physics can often be met with the same degree of incredulity as intelligent design. He used one of Whitehead’s terms, “causal efficacy,” in his defense of the physical effects of meaning. I doubt he’d ever be willing to talk about the cosmic constraints termed by Whitehead “God/Cosmos” and “Creativity.” Too metaphysical for these positivists. These guys deny the possibility of speculative knowledge right before going on to affirm their own speculative dualism between an inescapable manifest image and a verifiably true scientific reality (that only they the physical scientists have access to). I found the logical v. causal discussion around 1h:15m interesting. And then Dennett’s question about whether alien life emerging through alternative chemical pathways would nonetheless entail sociological, psychological, and economic behaviors obeying the same general laws of our carbon-based path. Its the historical, or causal dimension v. the logical, or mathematical dimension. What is necessary and what is contingent? Deacon nails it when he connects emergence to irreversible historical development. Accident, or Novelty (he used Whitehead the panentheistic metaphysician’s category!) as part of the fundamental dimension of reality.
This section of my essay on Whitehead’s relevance to 20th and 21st century physics clarifies (I hope!) my position on teleology and emergence in nature.
Skipping ahead to day 3 on philosophy and science, Owen Flanagan (@35mins) has some interesting things to say about the history of the reflection upon the nature of time from physical and from psychological and phenomenological perspectives (he mentions Bergson).
(@38mins) The (philosophical) point about the Hard Problem is precisely that naturalistic/physical explanation of consciousness is impossible, that “explaining” consciousness would require changing what scientists think they mean when they explain physics/nature.