Kastrup is confused by what I said in my original response to him regarding the room that ontological pluralism leaves for both the extraordinary experience of unity and the ordinary experience of plurality.
Ontological pluralism seems more true to experience (both common every day experience AND mystical experience), since it doesn’t deny the possibility of unity, it only denies that things are necessarily unified.
My claim here is pretty straightforward: everyday experience is multifaceted, while mystical experience is unitive. I’m not denying the testimony of mystics as to the unity of reality. Ontological pluralism grants the possibility of such unity. It just also incorporates the obvious fact of commonsense experience, as well. Mystical experiences are extraordinary precisely because they don’t happen all the time. So rather than ignore the plurality of the everyday experiences we spend almost every waking and dreaming moment of our lives in, I want to acknowledge that they, too, have ontological significance.
I’ll quote William James from the essay I mentioned in my original post, A Pluralistic Universe (available online in its entirety). As I said then, I think his arguments against monistic idealism are pretty convincing. They convinced me of the merits of pluralism, at least:
The sum of it all is that the absolute is not forced on our belief by logic, that it involves features of irrationality peculiar to itself, and that a thinker to whom it does not come as an ‘immediate certainty’…is in no way bound to treat it as anything but an emotionally rather sublime hypothesis. As such, it might, with all its defects, be, on account of its peace-conferring power and its formal grandeur, more rational than anything else in the field. But meanwhile the strung-along unfinished world in time is its rival:reality MAY exist in distributive form, in the shape not of an all but of a set of eaches, just as it seems to—this is the anti-absolutist hypothesis. Prima facie there is this in favor of the eaches, that they are at any rate real enough to have made themselves at least appear to every one, whereas the absolute has as yet appeared immediately to only a few mystics, and indeed to them very ambiguously. The advocates of the absolute assure us that any distributive form of being is infected and undermined by self-contradiction. If we are unable to assimilate their arguments, and we have been unable, the only course we can take, it seems to me, is to let the absolute bury the absolute, and to seek reality in more promising directions, even among the details of the finite and the immediately given. (lecture 3)
The cosmic unity intimated by mystics may indeed be the case. All the ontological pluralist argues is that this unity is not necessarily the case, that is, is not the end of the story metaphysically speaking. If we say it is the end of the story, we negate everyday experience, explaining it away as mere appearance. This, to my mind, is the worst kind of reductionism, in that it denies what is most obvious to our experience in favor of some hidden truth accessible only to a special few.
In light of the elitism implied by monistic idealism, a final word on the relationship between politics and metaphysics is in order. Kastrup worries that I conflate two entirely different categories when I say that a monistic ontology carries with it the risk of a totalitarian politics. “Does anyone seriously think that our (political) views and preferences bear any relevance to what nature is?” Kastrup asks. “Personally,” he continues, “I am interested in what is true, not what I’d prefer to be true.” I’d reverse his statement and point out that the way a society comes to terms with what reality is undoubtedly influences they way they compose a common world together (the composition of a common world is my definition of politics). I am not suggesting some sort of relativism wherein reality is decided by an opinion poll. But can anyone really deny the way metaphysical beliefs (consciously stated or not) correspond to the shape a society takes?
I unpack my thoughts on the relationship between politics and ontology in the videos below: