When a Captain Kirk si fi wooer postulates "us" existing after the brain dies it is as absurd as when a theist does it. As someone already said in this thread consciousness is an emergent property. On top of that the fact is that you are your brain in motion, nothing more. When your brain dies you die. A single particle does not act in the same manor as a functioning brain nor is it shaped like a functioning brain. It would be as stupid to pretend the key on your keyboard after the computer is smashed with a sledge hammer that one key will function as the entire computer in tact.
Si fi woo is as bad as theist woo.
Si fi woo is as bad as theist woo.