it is a fact that the brain is very efficient at learning from negative experiences and that it has a bias in which it continually scans for bad news.

That’s the bias of the brain. There are some individual exceptions to that but that’s the generalization that we’ve inherited from evolution. That’s the nature of the caveman brain. It looks for bad news, it locks onto the bad news and ignores the larger context. It overreacts to the bad news, it fast tracks that bad news reaction into immediate emotional memory storage and it sets up that record in storage for immediate access and retrieval based on anything that’s remotely similar. That’s the brain we’ve got, which is very effective for survival, but lousy for every day quality of life, spiritual practice and world peace because we’ve got a bunch of cavemen and cavewomen running around this world who are extremely reactive to each other, stuck in a lifeboat with seven billion other people jammed together and armed with nuclear weapons

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