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Tyrrell_McAllister comments on Your Evolved Intuitions - Less Wrong
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The eating each other's babies thing is what you get when group selection doesn't appear.
But yes, simulations of primitive agent models in this sort of context has been done to death. Even before they did experiments with actual living creatures!
I've done this kind of experiment myself - more or less as play or tinkering with my research tools. And not so much baby eating as replication suppression via within-group sabotage. (My Masters work was in nature inspired collective intelligence. So not trying to be simulation of reality but relevant in the opposite direction.)
What I found curious (or amusing) was that they were doing it with actual robots. Something about it just seems so cute. :)
Is that right? I may be misremembering, but I thought that the eating babies thing was a result of group selection. Eating babies arose when a group was under group-selection pressure to have a smaller population. The group complied with the pressure by having individuals within the group consume babies within the group. It was just that the individuals ate the babies of other individuals, thereby acting in accord with both the group-selection pressure and with an individual-selection pressure.