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The Benefits of Learning Optimism
We inherited from our ancestors a bad weather brain. The most recent geological epoch was the ice ages. Those of your ancestors who thought, oh, it's a beautiful day in New Haven today, a bit of beautiful tomorrow got crushed by the ice. They survived because they were right. And we got their brain. So now in a world which is much more prosperous by almost every measure we have than the world used to be, the pessimistic brain does not serve you very well. An optimistic brain allows you to take advantage of prosperity.