I won't be the one to solve it, but we thought the sound barrier was unbreakable a few centuries ago. I won't underestimate human ingenuity.
I think more likely is we figure out wormholes. If we can't go light speed we can instead fold space like a piece of paper and reduce the space we need to Traverse. That may or may not be as easy as FTL.
I think more likely is we figure out wormholes. If we can't go light speed we can instead fold space like a piece of paper and reduce the space we need to Traverse. That may or may not be as easy as FTL.