Let me explain that you are in fact immortal. First, you have to see that there is no reason for your brain and my brain to have different "souls" (whatever that may mean). It only appears to you that we are different beings because there is no strong neurological connection between our brains. But there is a connection (albeit very weak), in e.g. electromagnetic and gravity forces between our brains. The universe, of course, really doesn't care about all this. So you could say that we are both one being, and we are one with the universe. This means that we (and everybody else) will only die when the universe ceases to exist. Which is not likely to happen soon, so for all practical purposes, you are immortal.
> This means that we (and everybody else) will only die when the universe ceases to exist.
You're playing a trick there by jumping from brain to atoms, but people do not define themselves by their atoms, but by their consciousness which will not survive death making what you're saying about all being one rather meaningless. So..
> so for all practical purposes, you are immortal.
Not even close, because I cease to exist the second my brain dies and whatever happens to my atoms after my mind is gone is completely meaningless.
Another implication of this line of reasoning is that since there are no inherent boundaries between anything, the universe itself is thus a living, conscious being.
