As spacefaring civilization continues to develop, artificial habitats are likely to be constructed at a distance from Earth beyond which the overview effect tapers off, and eventually where Earth is just another star in the sky, as on Mars.Here, the selection pressure either to evolve a distinctive conception of humanity in space, or to find a homeworld, would be magnified.The equations were derived by me using an analysis of the Habcat database, and thus could be wildly inaccurate.
While the prior page was more about colonization motivation and methods, this page is more about good planets, hell-hole planets, scouting good planets, and changing hell-hole planets into good planets. This is because they generally start from a point (the homeworld) and expand in all directions like blowing up a balloon.
Which means they are subject to a sort of cube law.
The adaptive radiation of humanity in the cosmos will begin with these early spacefaring settlement efforts, but biological and cognitive adaptation to changed circumstances will still be in the far future when the first settlers are making themselves at home on Mars, and the first artificial habitats are being built and occupied.
During the earliest stages in the development of spacefaring civilization, the adaptation will primarily be that of individual attitudes.
(Which is a thought born of an aging civilization, by the way). But can you conjure up before you, in your mind, a wall with a hundred thousand bricks in it: and see all the bricks simultaneously? No wonder Imperial Terra let the facts about Freehold lie unheeded in the data banks.