The science of metacognition may eventually help people train their minds to make better choices.
Consider a game show where a contestant must choose one option out of three: A, B, or C. After selecting an option (say, B), the host reveals that one of the remaining choices (say, C) is incorrect. The contestant must then decide whether to change their mind and select the remaining option (A) or stick with their original choice (B). This is known as the Monty Hall problem.
This famous puzzle, named after an American game show host, has been a subject of interest for mathematicians for decades. It also reveals interesting aspects of how the human mind and brain function.
Changes of mind tend to improve choice outcomes.
Despite this, people are often reluctant to change their minds. Additionally, an understudied mental technique for falling asleep involves thinking of random words.
Author's summary: Metacognition helps train minds for better choices.