Good ideas and conversation. No ads, no tracking. Login or Take a Tour!
Sounds like an evolutionary hangover. In that, given the likelihood of meeting someone again in the thousands of years of evolution before civilisation, when populations were much lower and less dense, getting someone to trust you was more valuable.
The mathematical model seems flawed, though. It assumes that an act of selfishness automatically means one won't be trusted in the future, which isn't the case in the real world. It might mean that some person(s) won't trust you, but it doesn't mean everyone won't.