This idealistic monism makes the most sense at a fundamental level. Since our mind is the only thing we can be sure exists, granting objective absolute existence instead to all those other bits and bobs and atoms and neurons—everything else but the mind—strikes me as logically inelegant overcomplication.

While swapping the directionality of this causal arrow may be orthogonal to most of STEM fields as they are now (philosophical concerns are irrelevant to physics), it could have immense implications for fields like medicine and human well-being.