In his book The Idea of the World — leo
LEO
Kastrup's book is one of several recent attempts to reconcile Science and Religion. To do so, he had to bridge the gap between Realism and Idealism. Following Berkeley's arguments, he uses Quantum Theory and Information theory to show that Reality is just a Theory. Unfortunately for his ultimate religious goal, it also means that God is just a Theory. As a Deist, that conclusion is not a problem for me. So I have recently added a series of blog posts to discuss his astute ideas about Idealism *1. The blog is an extrapolation from my personal philosophical worldview :
Enformationism *2.
Here's a few comments on your observations :
1. Descartes doubted the reality of everything around him, but the one thing he could not dispense with was the mind doing the doubting. Physical scientists simply take their minds for granted, and study the non-mind world as reality. But social scientists, and quantum physicists, have found that disregarding the observing mind can lead to mis-perceptions.
2. Physicists originally assumed that “solid massy particles” (Atomism) were the fundamental reality. But Quantum Theory has dispelled that ancient notion. The foundation of reality is now viewed as fuzzy mathematical probabilities. So, how does immaterial mind emerge from such insubstantial stuff? I have a theory on that. *3
3. For pragmatic scientific or mundane purposes, we take the material world to be the substance of reality. But for theoretical philosophical motives, we may explore the possibility that the mental realm is the true essence of all phenomena. So, I think we'd be wise to use both concepts, Realism and Idealism, where they are appropriate.
3a. Actually, the immaterial mind emerges from the material body. That only makes sense if you understand that the body is made of mind-stuff. *4
3b. Kastrup's notion of many alters in a single mind is good analogy, but not a good explanation for how it works in the universe.
3c. Magical mind-over-matter doesn't work, because Nature has laws that govern both Mind and Matter.
3d. Even Libet admitted that his experiment didn't disprove the agency of mind. (Blog post 87)
*1 Blog Post 88 :
Reality is Just a Theory http://bothandblog5.enformationism.info/page15.html
Blog Post 89 :
Reality is Ideality http://bothandblog5.enformationism.info/page17.html
*2 BothAnd Blog :
http://bothandblog5.enformationism.info/page6.html
*3 Mind from Matter –
http://www.bothandblog.enformationism.info/page26.html
*4 Matter from Mind –
http://www.bothandblog.enformationism.info/page53.html