[AtlasBarfed]

If you have silicon/AI/computer-based intelligence, then it's a lot more durable in space and lasts a lot longer. That's a totally different ballgame. You don't even need habitable worlds, arguably what would be valuable is asteroids since you don't have gravity wells.

200 year transits isn't a big deal then. They could tolerate the G-forces of an Orion pulse nuclear ship a lot better too. That's 1960s tech, if you have some antimatter collectors in space (my idea for a starship-based startup, how valuable is antimatter?), then you get to have even more fun.

Orion can do .1c with fission. One of the big problems was getting it off the ground and the fallout was unacceptable.

BUT, with starship doing 150-250 tons, that means 8 flights for a 4,000 ton low-end orion, or ... a lot more for the high end 1,000,000 ton orion.