ZFGokuSSJ1
Rear Admiral
I can't wait to kill zombies.
Quarto said:It's only essential if you're planning to still be alive when you get there - if you're willing to settle for the grand-children of your grand-children seeing the final destination instead of you, then it's not an issue.
Quarto said:(also, note that which ever way you look at it, people would have to be really, really, really desperate to travel to another star system with cryogenics - would you be willing to take a one-way ticket to a place that nobody knows anything about?)