Quote Originally Posted by a completely inoffensive name View Post
A body is a biological machine. Once we have mastered learning about how it works on every level we can (will) redesign it into perfection. Sooner or later immortality will be achieved. Not by magic, but by slow progression. We will make a list of all the potential causes of death and start crossing them off. First will be aging, then at some point we will master the complexities of the immune system to be able to handle any sort of threatening bacteria, etc... Of course there will always be death from non natural causes like getting hit by a bus or getting shot. But stem cell regeneration will make all but the most fatal (like getting shot in the face 6 times) injuries treatable as well.
mmm, I have no doubts about the human body. But it seems possible that the brain can't regenerate and can't be fixed without destroying the memories etc. Perhaps they could genetically engineer people to have brains that survive indefinitely.

Of course, people talk about supercomputers that are copies of the brain. And they could be immortal, but that's cloning really.