4 ms·

> The choice is a two-planet species versus a more prepared one-planet species. That's not the choice. Those two options are not mutually exclusive.

• erikpukinskis 10y ago
  Sure they are. Every engineer working on a Mars mission is not working on sustainability/stability engineering.
  • i2amsam 10y ago
    Well, there are a couple engineers currently working on things which are not sustainability/stability engineering.
  • XorNot 10y ago
    Those problems on earth stopped being engineering issues a long time ago. See the current US election.