Often when I read about physics like this, I'm reminded that there are two possibilities: Either there is no practical way for a human to ever travel faster th

Often when I read about physics like this, I'm reminded that there are two possibilities: Either there is no practical way for a human to ever travel faster than light; or there is. Both possibilities are fascinating. (And yes I know about time travel paradoxes if FTL is possible- it's still fascinating!)