There is no scientific evidence for dualism - verifiable separability of mental stuff and physical stuff. It is also not metaphysically parsimonious and borderline incoherent. So which is it? Mental stuff or physical stuff?
Scientific theories, or any knowledge, or even any concepts about either experience or topics like "being" and ontology cannot tell us about "stuff" or what "stuff" is independent of limited perspectives that we don't usually identify with the "stuff" we are talking about - apart from experiences. Obviously we have direct aquaintance with experience; regardless of limitions of our concepts about experience, it is hard to deny that we experience. But I would argue concepts of experience play a similar role in naturalistic scientific knowledge as any other scientific concept as does concepts of "being". And ultimately there is no self-sustaining foundation for these things independent of enactive roles within perspective.
What actually is experience metaphysically? There is no criteria for what is and what is not an experience. There is no criteria to give that question the meaning that we want it to either - what does "metaphysical" mean? Just another concept we use, and (albeit) within experience too. But again, any coherent metaphysical generalization of our direct aquaintance is impossible.
To say the world is made of experience in the same way as houses are made of bricks also doesn't avoid the hard combination problem. The strong emergence involved in stacking layers of experience on top of each other.
Talk of any fundamental metaphysics is on some deeper level a enactive game as any other knowledge - it will always be found lacking in the sense that when we talk about fundamental metaphysics we are wanting something deeper than say the mathematical descriptions that make science superficially effective. Obviously no strict dividing line between science and metaphysics (or philosophy of science I guess) though. Best we can do is have concepts that make things coherent. Does saying the world is made of experience make things coherent for me? No, because experience is something deeply tied to my personal perspective which I may share with others in virtue of being organisms.
What I can say is my experience is some coarse-grained structure in the world undergirded by finer structures.
I have been thinking all scientific paradigms are united by notions of causality.
Steven Frank:
https://scholar.google.co.uk/scholar?cluster=5393718917133646068&hl=en&as_sdt=0,5&as_vis=1
https://scholar.google.co.uk/scholar?cluster=16974184348648837789&hl=en&as_sdt=0,5&as_vis=1
We cannot access anything else but causal relations between "things" on different scales.
If I make the assumption of equating my aquaintance with experience as ontology (whatever this means), then it suggests reality should be conceptualized as scale-free.
Reality is just causal structures all the way down (and this is akin to scientific statement with all the limitations of our physical theories that cannot tell us what the physical is - theories of reality cannot tell us the nature of reality intrinsically):
e.g.
https://pubmed.ncbi.nlm.nih.gov/33286288/
We cannot arbitrarily make more fundamental some causal structures over others even if they arise from coarse-graining over others. We can only at most make the distinction that finer-grained structures carry more information about reality. Insofar as causality is like communication, that is how we may relate it to minds - information and statistical physics are two sides of the same coin. There is a weak emergence aspect of information in the sense of scaffolding causal structures on top of each other. But also a strong emergence aspect in information when we look at how structures can detect or distinguish other causal structures in a "brute" way - almost like with our own phenomenal experiences.
I cannot tell you anything else about reality other than causal structures existing that can in some sense be construed as communicating information - what does "causal structure" mean? Again there is no non-circular foundation to this concept. Maybe we can talk about cause in terms of non-redundant temporal structure? These concepts bottom out in spatio-temporal structure.
But this talk about causal structure is not distinct from how when you dissect physics, what is fundamental is things like energy and work - which are just ways of quantifying how things change, or their propensity to do so - i.e. causality.
Is there a "bottom" to reality? What would that actually mean. Don't know. Maybe cannot know.
On the otherhand, does it make sense to say experience is what it is like to be some kind of causal structures in reality? Maybe. Could we then go on to say that all structures are just experience? Maybe. But the vacuousness of this makes it almost like a personal choice.
My personal choice is not to because it brings so many other connotations that complicate the naturalistic picture of reality, sometimes not making as much sense to me. If experience is another way of just talking about information (personal to, accessible to me) then the most fundamental notion in all this is something like causality. Reality is not made of blobs of "stuff" arranged or stacked, but causal structures instead. Maybe reality
should be seen in terms of blobs of "stuff". But we cannot talk about intrinsic "stuff" in a way that does justice to the word "intrinsic". We can talk about causal structure, information...
... Insofar that causal structures relate things that are sensible to us... we don't need to think about it in terms of cause as some "intrinsic" things... things too may be talked about or given meaning in terms of relations to other things.... relations all the way down another way of saying causes all the way down? Or perhaps structure.
A kind of structuralism. I have generally pushed back from Ontic structural realism in the past. I think my thoughts are closest to Otavio Bueno's empirical structuralism I think he calls it. (Or perhaps structural empiricism). Imo ontic structuralism is kind of empty or trivial -
[perhaps anti-realism too insofar that I think questions of realism may be subject to similar indeterminacy as scientific theories themselves - debates about theories being right or wrong, how right or wrong (or which bits) and in what sense right and wrong mean (e.g. Newtonian physics could be right or true in the sense of describing some of our data approximately, it could be wrong if you take it as the general principles of the universe).
Can we justify theories being correct in contexts of pluralism and empirical adequacy? Is there even a discrete dividing line between theories insofar that you can deconstruct, change them, throw bits out, retain others. Theories can be right (or useful) in some ways, wrong in others, often idealized. The significance may depend on perspective - as said before once, scientific anti-realists and realists often accept the same facts about science in terms of underdeterminism and losses with theory change.]
- while we only access structure through enactive perspectives. I guess it in some ways boils down to what you think "right" means. If you have a loose or indeterminate standard for what "correct" or "true" means then theories may seem more "real" compared to someone in which "true" requires stronger standards.
But ultimately, many theories are idealized and go on to be rejected - its always an open question how long things will be rejected or accepted for. At the end of the day, the story I use about scientific theories is an enactive one, truth too. So there is a strange loop aspect - debating about whether theories are true when you have already decided that uses of truth is nothing more than an enactive process in a real world of structure. One could try and clear this up with a simpler picture of separating subjective from objective, real from non-real - but a clearer picture comes at the cost of greater idealization. And here we see there is an element of personal preference in selecting meta-theoretical views where you trade off clarity and precision or complexity and accuracy in the context of model selection. But I think regardless of meta-theoretic views of what "truth" or "correctness" means I always endorse notions of knowledge fundamentally in terms of enaction, idealization and agnosticism of future acceptance (to various degrees of subjective certainty depending on what we are talking about - and even then, graded certainty has an arbitrary relation to acceptance or rejection in the sense that someone may have higher standards of certainty to which they accept something compared to others - belief and justification always have some kins of normative aspect in general: i.e. its not strictly about whether something is true or false but whether I
ought to believe it and why. Induction may not be the best argument in general, deflating enactivism better so).