Comment Re:Uh, simple (Score 3, Insightful) 246
There should be at least three well-tested working backups for everything thats needed: water, food, housing, etc...
I would start by creating self contained units that can survive equally well in the sahara, antartica, and underwater with minimal* air exchange with
the outside. Salt water, cold, and sand are notoriously hard on equipment and if a single type of unit can survive in all 3 environments then they
might have a fighting chance. My guess is we have very little that can survive 80 years in any of those 3 environments without repair materials
being sent and I don't see mars being self sufficient for a very long time.
* the only reason I say minimal is that there is no reason even on mars that you couldn't do outgassing or ingassing of needed or unneeded
gases. It doesn't have to be 100% self contained if there is some way to regulate correctly the amount of different gases in the environment.