Can a computer be an observer?

[Demystifier]

At least I think it is very important to distinguish 2 flavors of BM: c- and nonc-.

I think it is very important to distinguish 2 flavors of physics: physics which tries to say something about consciousness and physics which doesn't. (I prefer to use the second flavor whenever possible.)

 

[Demystifier]

casiumfrog, you are reading my mind. And in fact, I had mentioned P-zombies before. In nonc-BM people in 'empty' branches are exactly what is called P-zombie.

Irrespective on BM, MWI, and quantum mechanics, I do think that P-zombies are logically possible and that they are a good argument for the claim that phenomenal consciousness and qualia cannot be explained from the known laws of physics. I recommend the book
D. Chalmers, The Conscious Mind (1995).
If there is anything magic in BM, or in MWI, or even in classical mechanics, then it is the appearance of consciousness.