[Because he's still wrapping his mind around not only different planets, but different versions of Earth entirely. He hasn't had much of an opportunity to dig into the history of how the survivors of the Adamant go there, but he can venture a guess that it's fairly divergent from what he knows. And what Vidar knows, too.]
Lots of reasons. Humans are good at using everything up.
[They had made strides, but things like a changing climate and humanitarian disasters were not a thing of the past. He can't imagine spending so much time and energy trying to get out of the solar system when there were still things to do back home.]
no subject
[Because he's still wrapping his mind around not only different planets, but different versions of Earth entirely. He hasn't had much of an opportunity to dig into the history of how the survivors of the Adamant go there, but he can venture a guess that it's fairly divergent from what he knows. And what Vidar knows, too.]
Lots of reasons. Humans are good at using everything up.
[They had made strides, but things like a changing climate and humanitarian disasters were not a thing of the past. He can't imagine spending so much time and energy trying to get out of the solar system when there were still things to do back home.]