Another benefit of writing insights down is that people are prone to reverting to their old System 1 habits and letting their System 2 forget them. As per Pavlov, it usually takes quite a few tries to internalize an insight, and having stuff written down helps fight the reversal long enough to get a new habit established. The “share with the world” bit may or may not help, but it is usually cheap, so why not.
Another benefit of writing insights down is that people are prone to reverting to their old System 1 habits and letting their System 2 forget them. As per Pavlov, it usually takes quite a few tries to internalize an insight, and having stuff written down helps fight the reversal long enough to get a new habit established. The “share with the world” bit may or may not help, but it is usually cheap, so why not.