Exactly. The question is phrased as if moving to Mars is a real option, or will be soon. If one believes the wild predictions from Elon Musk, and that he can wo

Exactly. The question is phrased as if moving to Mars is a real option, or will be soon. If one believes the wild predictions from Elon Musk, and that he can work around some massive issues with physics and biology and logistics, and that "terraforming" is a real thing humans can do, then that future habitable Mars might seem like a possibility in the lifetimes of people alive today. It's probably not.