When you ask "what is" you can only answer in terms of other things. — Agustino
That's right. The Hard Problem has bite because in the end, causal explanations (about anything) rely on counterfactuals. You can believe the answer is A because you believe the answer isn't not-A.
And so when you make the question about the cause of some totality - like "the Cosmos", or "the Mind" - then there just is no not-A permitted by the question. Or rather you get the ridiculous answer that the only alternative is "not". Existence arose out of nothing. Mind arose out of nothing.
Talk about qualia has the same formula. Why is green green? Why is the scent of a rose like the scent of a rose? The question form itself fails the counterfactuality test. There just is no comparison possible as green is always green. And it still would be as far as I'm concerned even if it were to switch to
bleen. (
https://en.wikipedia.org/wiki/New_riddle_of_induction)
Aristotle made the same point. Talk of causality is always a question about a reason for a change. Without counterfactuality, the game doesn't even get off the ground. The question you are asking is not really a question if you the questioner fail to provide a reasonable counterfactual basis for it.
The burden is on Schop to show why he is asking a good question ... if he now again denies that the question was answered.
Then to repeat what I've said about a Peirce-style organicism a million times, it does provide you with a critical extra counterfactual resource when asking questions - another dimension to standard metaphysics. It may not eliminate the problem here, but it is a further way to minimise it, to shrink it as small as we know how.
That extra resource is the (still pretty Aristotelean) notion of vagueness. So Peirce stood for a developmental metaphysics in which all things originate in a state of ultimate vagueness (or Firstness). Then by a mutual or orthogonal act of separation - a dichotomisation, a symmetry-breaking - you get a fundamental opposition arising. And from that dyadicy of a bare relation - a now
crisp distinction that gives you your requisite either/or - you can develop further to the third thing of an interaction that hierarchically goes to equilibrium over all possible scales of being. The vague (as a formless chaos) becomes the crisp (a structured and law-like state of affairs in which change becomes minimal).
So this is a tale of how emergence and process can lead to the kind of deadened world we observe - a Cosmos nearly at its Heat Death doing nothing but entropifying. And thus - counterfactually - life and mind can be understood as "other" to that. We are distinguishable from our context by our negentropic qualities.
Semiotics is then a further part of this developmental story in both being the triadic logic of the metaphysics - the vague to crisp tale of developmental organisation just described - and also the particular story of the mechanism, the modelling relation, which accounts counterfactually for life and mind.
So to deal with both of philosophy's hardest problems - what is existence?, what is mind? - Peircean semiotics calls on the further metaphysical resources of the vague~crisp to get us further down the road towards an intelligible reply. Vague vs crisp is another source of counterfactuality to motivate the framing of the questions.
And vagueness is in fact defined logically as a perfect lack of counterfactuality. Peirce said vagueness is that to which the principle of non-contradiction fails to apply. Crispness is thus the opposite - where the counterfactuality has developed to a point we might consider it absolute.
This is all very neat. Logic - the way we can ask definite questions - has just been extended in formal fashion so that it can safely talk about the indefinite. We can begin our metaphysical conversation even before counterfactuality arises - as the emergence of counterfactuality is what semiosis fundamentally explains.
This is not so new. Anaximander did it at the dawn of metaphysics with his much misunderstood tale of existence's emergence by symmetry-breaking from the Apeiron.
Indeed, something similar is the basis of most ancient wisdoms. You have the Judaic Ein Sof, the Taoist Dao, the Buddhist dependent co-arising, etc.
And of course - if you can get past the Scholastic misrepresentations - Aristotle was striving towards the same with his Hylomorphism. His "prime matter" was a logical attempt to vague-ify the basis of being.
So when it comes to asking the most interesting open questions - why mind? why existence? - the search is for some position of counterfactuality that can make those questions seem more sensible. And a Peircean developmental logic, one that is rooted in a notion of vagueness, a complete lack of counterfactuality, is the bold new metaphysical approach that deals directly with this very issue of counterfactuality.
That is why he summed up existence as "the universal growth of reasonableness". Such a statement sounds very mystical and is open to obvious misinterpretation. But that is why you actually have to study and learn the new logical notion that lies behind it.