[ethbro]

Not risk adjusted.

[QAPereo]

Compared to the risk of Mars? I take your point, but let’s be realistic about our odds on Mars without Earth backing it all up.

[ethbro]

Granted. And initially, sure, but aiming long term for a single-planetary culture that took 3.8 billion years to develop seems shortsighted.

The risk of that life snuffing out may be small, but the time cost of replacement should that happen is huge.