What do you thin khappens when you die, and why do you think it happens?

I beleive in re-birth, i beleive that you can't just be gone.. your past thoughts may be , but your essence, or your 'soul' can't just disappear.
The kind of backwards evolution theory makes sense, but i beleive it would not happen because of our own doing, or maybe it would, an ice age possibly. When humans think they are their peak... and they invent something far wprse then can be imagined.

I was goign to make this a poll, but there's too many different possibilites, so it's quite open.