I’ve always struggled to make sense of the idea of brain uploading because it seems to rely on some sort of dualism. As a materialist, it seems obvious to me that a brain is a brain, a program that replicates the brain’s output is a program (and will perform its task more or less well but probably not perfectly), and the two are not the same.
I think that basically everything in the universe can be considered a program/computation, but I also think the notion of a program/computation is quite trivial.
More substantively, I think it might be possible to replicate at least some parts of the physical world with future computers that have what is called physical universality, where they can manipulate the physical world essentially arbitrarily.
So I don’t view brains and computer programs as being of 2 different types, but rather as the same type as a program/computation.
The ancients considered everything to be the work of spirits. The medievals considered the cosmos to be a kingdom. Early moderns likened the universe to a machine. Every age has its dominant metaphors. All of them are oversimplifications of a more complex truth.
I think the crux of it is here:
I think that basically everything in the universe can be considered a program/computation, but I also think the notion of a program/computation is quite trivial.
More substantively, I think it might be possible to replicate at least some parts of the physical world with future computers that have what is called physical universality, where they can manipulate the physical world essentially arbitrarily.
So I don’t view brains and computer programs as being of 2 different types, but rather as the same type as a program/computation.
See below for some intuition as to why.
http://www.amirrorclear.net/academic/ideas/simulation/index.html
The ancients considered everything to be the work of spirits. The medievals considered the cosmos to be a kingdom. Early moderns likened the universe to a machine. Every age has its dominant metaphors. All of them are oversimplifications of a more complex truth.