Mars colony is just an incredibly inefficient way to do civilizational refuges. Many times more expensive, not much safer, and far harder to rebuild from for most global catastrophic scenarios. (“No matter how inhospitable you make Earth, it is likely still more hospitable than Mars.”)
However, lessons/talent from space colonization might be very useful for terrestial refuges, and vice versa.
Mars colony is just an incredibly inefficient way to do civilizational refuges. Many times more expensive, not much safer, and far harder to rebuild from for most global catastrophic scenarios. (“No matter how inhospitable you make Earth, it is likely still more hospitable than Mars.”)
However, lessons/talent from space colonization might be very useful for terrestial refuges, and vice versa.