Comment by SJC_Hacker

A single colony would be a huge investment… it’s doubtful there would be thousands of attempts if success rate is low

And we would have to establish the reason for the colony … I’m not talking about a research base, but a place where people would settle, do useful ecomonic activity, raise families and live out most of their lives … I cannot 5hink of a reason why people would want to do 5hat anywhere but Earth.