Failure is not something that exists in reality — it’s a concept, an interpretation layered onto events. Joe emphasizes that the idea of failure requires believing there’s a deadline or endpoint to life. As long as you don’t believe there’s an end, “there is no such thing as failure — there’s just the next iteration, the next attempt, the next experiment, the next try.”

The brain structure called the habenula regulates dopamine and serotonin in response to perceived failure, reducing motivation to try again. This was adaptive for a rat in a maze or a lion fighting for mating rights, but in modern life it turns a single bad interpretation into a self-fulfilling prophecy. People who are depressed often have a habenula that perceives failure before it even happens — leading to the classic depressive belief that “this is going to last forever.”

“The idea of failure which is just an idea is one of the things that we design our entire programs to prevent.”

The most dangerous aspect is that failure doesn’t need to be real to be devastating. It only needs to be believed.

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