Re:"If we did leave the solar system, where should we go?"
And when they find a perfect planet, somebody is bound to say:
Yeah, but you know how it is with travel destinations: they look all shiny in the brochure, but when you get there the landing strip is awful, the customs officers rude, the taxi driver rips you of and drives you to your hotel which hasn't even been built yet, the sand on the beach scorching hot, but the sea is freezing cold for some reason, and it's polluted, and the Germans have taken all the towels and deckchairs, the food is awful and the toilets wont flush, the next-door kids will making far too much noise and the disco next door means you can't sleep a wink!
We might just as well stay at home or go to Southend-on-Sea
Such people should be sent of on a B-Ark to a small blue-green planet at the unfashionable end of the western spiral arm of the galaxy.
Oh, hang on.....