re: How long until we have a self sustaining population on another planet?

quote:

---

Eh, there are a lot of things we have today that would have seemed impossible 500 years ago.

---

Nei deGrasse Tyson made an interesting point in this. To paraphrase, once we’re smart enough to terraform an entire planet, shouldn’t we be smart enough to fix whatever is going on on earth that would cause us to need to terraform another planet in the first place?