Direct dating of gold by radiogenic helium

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.

direct dating of gold by radiogenic helium-15

While living on Mars will not be easy, it will be far more planet-like than living in an entirely artificial habitat.

We are the kind of beings that evolve on a planetary surface, i.e., our bodies and our minds both were shaped by our planetary endemism, and this homeworld effect is expressed in our characteristic modes of life and thought.

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.

If my slide rule isn't lying to me, this works out to an average distance between adjacent stars of 9.2 light years, and an average distance of 15.4 light years between adjacent habitable stars.

You have decided that the Neo Roman Star Empire will contain 10,000 habitable planets. cube Root(10,000 * 464) = cube Root(5,643,000) = 167 light years radius = 334 light years in diameter.

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.

The viewpoint of residents of artificial habitats will more closely reflect terrestrial viewpoints than those of Martian settlers.

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