User blog comment:GrandMethuselah67/Lore Sheet: The Democratic Imperium of Neohumanity/@comment-4867780-20150925065819/@comment-4867780-20150928021935

True, I forget the universe is mostly empty space, so with the ability to build new planets space should be a problem. I never quite understood the "bigger on the inside" trick though. I mean, technically speaking how could a small space reasonably contain a big one ? Can't quite wrap my head around this one ^ ^;

What is the reversed-entropy exotic matter part about, in simple terms ? Planets and stars seem a relatively unsustainable resource since their materials are consumed in the process, especially when it comes to creating new worlds to inhabit. The tremendous force generated by black holes could durably solve energetic issues, but they don't seem able to help much when it comes to the construction of new structures. All in all, siphoning materials from other dimensions seem the only inexhaustive source for physical expansion.

I've been wondering about it regarding the P.O.H.U too, as in how to sustain an ever-increasing population of hedonistic immortals. Most of the demographic expansion would come from procreation in this case, since immigration is a very personal and selective process, while all citizens may have as many children as they are willing to care for  (maternal instinct is an essential part of female nature, so quota-induced eternal sterility would completely ruin the utopia spirit).

Didn't give it much thought, figured Lawrence would just absorb a couple expandable planes ever now and then, should provide all the necessary resources for quite a while. Especially in an Omniversal perspective, holding infinites realities of all kinds.