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<blockquote data-quote="Umbran" data-source="post: 1923168" data-attributes="member: 177">Yep, but that's basically a one-time only deal.&nbsp; You get one cooling, and then it's done.&nbsp; You don't get continual renewal of your surface.&nbsp; You don't generate new mineral deposits, or recucle carbon that way.I'm not talking about generating features.&nbsp; There's forces that will shape what land is there.&nbsp; But in the end it all goes away, claimed by entropy.&nbsp; I'm talking about generating new land.Well, most of the Appalachians are barely qualifiable as &quot;mountains&quot; anymore.&nbsp; They're more like really big hills.&nbsp; As opposed to the Rockies or the Himalayas.&nbsp; And that's only a difference of a few hundred million years, IIRC.&nbsp; As compared to the billions of years it took for life to evolve.&nbsp; Depending when your tectonics freeze, you're prety likely to end up with only the small stuff.Sure, you can pick any time you like, obviously.&nbsp; But if you're going to pick a pseudoscience rationale, it then seems a bit odd to then have to pick a more unlikely variant on that riationale to get what you want.&nbsp; Might as well just drop the science altogether at that point.None of which would be currently extant if water remained on the surface to continue erosion.&nbsp; By comparison to Earth, Mars has diddly for erosion, and has been that way for a long time.</blockquote>

[QUOTE="Umbran, post: 1923168, member: 177"] Yep, but that's basically a one-time only deal. You get one cooling, and then it's done. You don't get continual renewal of your surface. You don't generate new mineral deposits, or recucle carbon that way. I'm not talking about generating [i]features[/i]. There's forces that will shape what land is there. But in the end it all goes away, claimed by entropy. I'm talking about generating new land. Well, most of the Appalachians are barely qualifiable as "mountains" anymore. They're more like really big hills. As opposed to the Rockies or the Himalayas. And that's only a difference of a few hundred million years, IIRC. As compared to the billions of years it took for life to evolve. Depending when your tectonics freeze, you're prety likely to end up with only the small stuff. Sure, you can pick any time you like, obviously. But if you're going to pick a pseudoscience rationale, it then seems a bit odd to then have to pick a more unlikely variant on that riationale to get what you want. Might as well just drop the science altogether at that point. None of which would be currently extant if water remained on the surface to continue erosion. By comparison to Earth, Mars has diddly for erosion, and has been that way for a long time. [/QUOTE]

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