Thread:Ghelæ/@comment-5080468-20170729213650/@comment-5080468-20170730143044

It must be said that only the core worlds that consist of mainly habitable planets that needed no hermetic habitats have populations in the terms of billions. Ærd has 20 billion, some highly urbainzed industrial planets have slightly more, but most have up to 10 billions.

The newer worlds have populations based on their age and on planet types. Since only one in twenty systems has habitable planets according to my guess, most of the 2000 newer colonies will be underground, orbital or otherwise hermetically enclosed habitats with up to half a billion in the best case. The newer ones (a better half of the 2000) and those that count as Outposts and not as Colonies will probably just have a few millions each, as such being negligible. I put the population to one and a half trillions, making the general average planetary population density (GAPPD) to less than a billion per planet.