Regardless of the technical barriers, sooner or later you’ll have to face the real problem: You’ll have to convince a couple of generations if not more to thro

Regardless of the technical barriers, sooner or later you’ll have to face the real problem: You’ll have to convince a couple of generations if not more to throw their only life away Sacrifice similar to the Chernobyl fire brigade, except all day, every day for 30-50 years to get the colony up and running. And besides I really dont get this whole backup plan doctrine. Backups by definition are as fungible as the original, but if the Earth is destroyed the Mars colony has no chance. Whatever the odds of survival are for Earth, the odds for the Mars colony are orders of magnitude worse. Looks like it’s not even a worthwhile sacrifice