Corrente

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"Evolution Will Punish You If You're Selfish and Mean"

Yeah, but how long will that take? Science Daily:

"We found evolution will punish you if you're selfish and mean," said lead author Christoph Adami, MSU professor of microbiology and molecular genetics. "For a short time and against a specific set of opponents, some selfish organisms may come out ahead. But selfishness isn't evolutionarily sustainable."

In 2012, a scientific paper unveiled a newly discovered strategy -- called zero-determinant -- that gave selfish players a guaranteed way to beat cooperative players.

"The paper caused quite a stir," said Adami, who co-authored the paper with Arend Hintze, molecular and microbiology research associate. "The main result appeared to be completely new, despite 30 years of intense research in this area."

Adami and Hintze had their doubts about whether following a zero determinant strategy (ZD) would essentially eliminate cooperation and create a world full of selfish beings. So they used high-powered computing to run hundreds of thousands of games and found ZD strategies can never be the product of evolution. While ZD strategies offer advantages when they're used against non-ZD opponents, they don't work well against other ZD opponents.

"In an evolutionary setting, with populations of strategies, you need extra information to distinguish each other," Adami said.

So ZD strategies only worked if players knew who their opponents were and adapted their strategies accordingly. A ZD player would play one way against another ZD player and a different way against a cooperative player.

"The only way ZD strategists could survive would be if they could recognize their opponents," Hintze said. "And even if ZD strategists kept winning so that only ZD strategists were left, in the long run they would have to evolve away from being ZD and become more cooperative. So they wouldn't be ZD strategists anymore."

Let's hope this happens fast. We could start by defunding the economics departments at Harvard, Yale, MIT, Chicago, Princeton, etc.