I had a dream about that one time, a good few years ago.
...And no, I wouldn't go. I would be leaving behind all my friends. Unless all my friends and family get to come, I'm not going.
As shit as this world is, my whole life is here. I can't leave it behind.
--
Relating to my dream:
If I remember right, in my dream, my mom signed me up, telling me that it would be my chance to make something of myself. And then I found out that by the time I would get to come home, the relativity would make it so that everyone I cared about would be LOOONG dead. So she was all like "well, look up their descendants!". to which I was like "It's...not the same".
Then I tried calling my friends and none replied, although I did get to chat with one friend for about 30 seconds and all he said was "do what you think is best, man". ...Then, as I was getting on the shuttle, I said screw it, get one of the reserve guys on, I'm not going.
My parents were not too pleased, but I told them that I didn't give a rat's ass about making the history books, and that my friends meant too much to me to leave them behind. And then I wondered where my life would have gone if I HAD gone.
And then there was some weird reversal where I saw what would have happened if I had gone, and there was some weirdness where I turned into a shape shifting sea slug, the world was all made of water, I got abused by two of my family's descendants, hooked up with a bunch of kids who got arrested for 3 years for crashing a skateboard, and then I went no more heroes on an escaped gorilla trying to destroy the freeway. 0_o