Thanks Hans, that takes it to the rub-point: why did the Louzans want kids at that rate? That's a cultural consideration that probably needs some thought.
The first thing that springs to mind is that there were a lot of settlers early on from a cultural group that was in danger of disappearing. When they arrived they saw large families, on a world that could take as many as they wanted to have, as a way to achieve this. Do it for a few generations and it starts to become tradition. Do it until after the boom times have occurred, and there's a population problem even if families only replace themselves by that stage. Even a population decline could take some time to significantly decrease the number of people on the world.
The first thing that springs to mind is that there were a lot of settlers early on from a cultural group that was in danger of disappearing. When they arrived they saw large families, on a world that could take as many as they wanted to have, as a way to achieve this. Do it for a few generations and it starts to become tradition. Do it until after the boom times have occurred, and there's a population problem even if families only replace themselves by that stage. Even a population decline could take some time to significantly decrease the number of people on the world.
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