Bernardo Kastrup is a physicist who has broken from materialism as the basis for understanding the nature of the universe. Materialism is the doctrine that there is nothing in the universe except matter and its motions. Hence explaining how something so immediate, mental, weird, and undivided as consciousness arises from a material process becomes the “hard problem” of consciousness.
By contrast, Kastrup has become a thorough-going radical “idealist”. Not as in someone who is driven by ideals, but someone who considers that mind is the fundamental constituent of the universe.
An introduction to where his views have led him is found in this Scientific American article:
The obvious way around the combination problem is to posit that, although consciousness is indeed fundamental in nature, it isn’t fragmented like matter. The idea is to extend consciousness to the entire fabric of spacetime, as opposed to limiting it to the boundaries of individual subatomic particles. This view—called “cosmopsychism” in modern philosophy, although our preferred formulation of it boils down to what has classically been called “idealism”—is that there is only one, universal, consciousness. The physical universe as a whole is the extrinsic appearance of universal inner life, just as a living brain and body are the extrinsic appearance of a person’s inner life.
I have been reading Kastrup’s Why Materialism is Baloney to my considerable satisfaction. His writing is clear as water, but what he is asking you to imagine is that how you have been educated causes you to misperceive the world. It is not his language that is difficult. It is in seeing the world through fresh eyes.
Kastrup is the antidote to the Harris/Dennett/Hitchens school of radical materialist atheism.
Watch out for Kastrup; the man is taking the battle to the reigning gods of drivel.