> The short-term goal (short in the grand scheme of things, that is) What is the timescale you have in mind? Hundreds, thousands of years? If this is the case,

> The short-term goal (short in the grand scheme of things, that is) What is the timescale you have in mind? Hundreds, thousands of years? If this is the case, it makes more sense focusing on keeping Earth livable. I think Kim Stanley Robinson had a nice take on this in "Aurora" (https://en.wikipedia.org/wiki/Aurora_(novel) https://en.wikipedia.org/wiki/Aurora_(novel)). Without giving too much away, one of the core ideas of the novel is that there really is no place like home. > After that, moving to Mars will be a much more attractive prospect to a non-negligible number of people. Hmm, what makes you think that? Again, how bad should Earth get before living in a place where you can't go outside is a better option?