Alex Mesoudi @alexmesoudi.com · May 30 First we formalise when information free-riders (i.e. non-innovating social learners) outperform information sharers (open innovators who always share information). We also explore when information hoarders (closed innovators who never share information) outperform info sharers.
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Then we show how kin selection can solve this dilemma, where sharers only share with kin (offspring). This works, but greatly slows down cumulative culture due to the reduced pool of demonstrators (one or two parents), especially when copying has less than perfect fidelity.