I think the more urgent question is 50 years from now when we might have general AIs that are smarter and faster than us. Maybe they'll figure something out for

I think the more urgent question is 50 years from now when we might have general AIs that are smarter and faster than us. Maybe they'll figure something out for us. From there to the end of the solar system and eventually the universe will be quite a bit of a journey that may or may not feature some of the more wacky stuff that Ian Banks and other authors have already imagined. Given how we struggle to foresee even the very near future, I'd say all bets are off that far out.