"You" and everything that makes "you" is nothing but a series of electrical impulses. EVERYTHING that is you is in the pink thing inside your head. When you die, there is nothing to power the electrical impulses therefore the pink thing stops functioning and everything that was "you" is over. People talk about souls but that's just religious crap
In what way can a soul exist? If, in some magical way, it did, it wouldn't have any of the thoughts, memories or anything that makes what you are. They are specific to your brain and nothing can ever take them out or present them in any other way at all.
On the other hand, I don't understand how people are comparing us to computers, using that as proof that when we die we stop. Computers don't develop a personality, a sense of being, true consciousness of what or who they are or the world around them. We are pretty unique organisms in that sense. While I don't see this as a reason to believe we have a soul, or do anything other than decompose when we die, it does add another aspect to it other than "we die, we stop".
Btw, gif83, I find your theory very interesting
It can take just milliseconds for the chain of enough electrical signals to give the impression of a whole life to happen. Although, while the brain is still working for these milliseconds for it to happen in, we aren't technically dead, so it still doesn't resemble life after death.