I would have to say immortality. I could then see how we finally do ourselves in, and maybe watch other planets do the same. Being immortal, I could just float in space to the next planet if our world goes under.
Immortality sounds nice...
Only if you stop aging at a young age
without having experience pains
of growing old.
If that happens I'll just hide somewhere
and develop a virus to create zombies
and screw the world.
I'll just want an average life. Well to be frank it is not really a bad idea to have an extended life because I would be able to see on how advance humanity will attain. Though I don't want to become an immortal. It would suck to be wandering around forever in this world except for some people who don't have a goal in their life.