The reality is I'm already too old and out of shape. But if by some miracle the opportunity came up, I'd jump at it.

Interestingly, for the last question, I thought about it, and came to the conclusion that hyper-intelligence isn't a great survival trait. Yes, you need some hyper-intelligent people, but you also need farmers, plumbers, electricians, construction workers etc where skill with decent intelligence is more useful. If everyone is hyper-intelligent, they'd all want to be in charge !

It might also make sense if a colony was a cluster of smaller settlements in a region rather than one big city. It reduces the impact of any single catastrophic failure. Contrary to what most people think, I also reckon the focus should be on the lowest technology possible to make things work. High tech means high complexity and higher chances of failure. Simple technology is easier to fix in the field if the main repair depot is on the other side of the sun.