It would seem that what prevents naturalist or naive materialism from dissolving into idealism is only the belief in a necessarily unexperienceable otherness which is the ultimate driver of experience. But this makes no pragmatic difference. Matter is finite and so can provide only finitely many degrees of freedom to its product in consciousness, and since these degrees are in ideality, the result is purely ideal; you can forget about matter entirely. On the other hand idealism might venture to claim infinite degrees of freedom, but since it insists at the outset that these are only in ideality, the result is the same. The issue is not about prediction or simulation, but about the possibility of a genuine encounter with what is not bound by your own mind, or by any possibly mind which supervenes upon your own mind. Experience merely extends the sphere of the known, and however unexpected such an extension might be in the moment it would leave you unsatisfied. The only direction or site in which experience is necessarily impossible is the experiencer. And so paradoxically, therein rests the only possibility for the encounter with authentic otherness.