Probably not. On the timescales of millions of years, the only thing that really...

jessriedel on April 15, 2019 | parent | context | favorite | on: Travel through wormholes is possible, but slow

Probably not. On the timescales of millions of years, the only thing that really matter is whether it's physically possible, and it looks physically possible to colonize other galaxies.

http://www.fhi.ox.ac.uk/wp-content/uploads/intergalactic-spr...

I'd be pretty surprised if the jump between galactic groups is much worse.