Dr Adequate said:I'm sorry, but I think this is circular. What it amounts to is that a materialist believes that everything in the world is fundamentally made of the fundamental stuff of the world.
Which is what I was (badly) trying to avoid.
Idealism seems to be the notion that the fundamental stuff of the world is very much like the kinds of things that go on inside our own heads - ideas. Follow that, and it's only a short jump to supposing that the fundamental stuff of the universe is things very much like persons, because really only persons can have ideas. Hence, animism and then theism (poly and mono).
By contrast, science is discovering that the fundamental stuff of the universe appears to be impersonal. It does not think, or have ideas (like what we are used to). As we probe more and more deeply, the basic stuff of the universe becomes incomprehensible - outside our experience. We lack metaphors to really "understand" modern physics in the way that we understand most things.