The next time your brain refuses to recall a simple fact or name, be thankful. That’s because according to University of Toronto professors Blake Richards and Paul Frankland, it could be a sign that your brain is getting rid of unnecessary information so that it can operate more efficiently and help you make better decisions. They believe forgetting old information makes the brain more efficient.
Additionally, the team believes that retaining too much detail could prevent us from making good decisions. “We all admire the person who can smash Trivial Pursuit or win at Jeopardy, but the fact is that evolution shaped our memory not to win a trivia game, but to make intelligent decisions,” says Richards. “And when you look at what’s needed to make intelligent decisions, we would argue that it’s healthy to forget some things.
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