Well, yes. Terchnically we wouldn't need to make a super-fast vessel to reach our goals. We could carve out an asteroid with plenty of room for alot of people, sending them off on a generation-spanning journey.
The problem with this however would be the risks of the space explorers and people on Earth getting a bit too much separated between each other through the course of time.
The problem with this however would be the risks of the space explorers and people on Earth getting a bit too much separated between each other through the course of time.