I feel like the easiest would just be to assign newborns one of 12 (or however many) archetypes and just rotate through the list constantly. So a baby born gets archetype 1, then the next born wherever in the world gets 2, then 3, then so on until 12 when we restart at 1.
Humans would never be able to trace it because so many babies are born and the data and infrastructure doesn’t exist worldwide to track births to the second. It’d be functionally random but divided exactly.
I feel like the easiest would just be to assign newborns one of 12 (or however many) archetypes and just rotate through the list constantly. So a baby born gets archetype 1, then the next born wherever in the world gets 2, then 3, then so on until 12 when we restart at 1.
Humans would never be able to trace it because so many babies are born and the data and infrastructure doesn’t exist worldwide to track births to the second. It’d be functionally random but divided exactly.