Waitbutwhy has an amazing explanation of the how's and why's.
http://waitbutwhy.com/2015/08/how-and-why-spacex-will-coloni...
Waitbutwhy has an amazing explanation of the how's and why's.
http://waitbutwhy.com/2015/08/how-and-why-spacex-will-coloni...
First, "adventure" is a reason to go there, not to settle.
Second, I'm not buying the "drastically improve humanity's chance at survival" argument. There have been several mass extinction events in the past, so in order to survive one that might be coming, we should move to a place where there is likely no life at all? That does not make any sense to me.
If we can survive on mars, we can survive on Earth no matter what can plausibly happen to it.
Mankind will likely survive the next mass extinction[1], and we don't have to go to mars for that.
1. http://io9.gizmodo.com/why-humans-will-survive-the-next-worl...
Exactly. So going to Mars and staying there long-term will require us to develop many solutions that can be applied here on Earth. Both under current conditions and conditions that would currently be civilisation-threatening.
It seems prudent to avoid keeping all the eggs in one basket by staying only on this one spacerock.
However as a civilization, which spans many generations and may go on forever, the situation is a bit different.