What does it mean that public commitments create accountability?

Telling others about your commitment adds social pressure to follow through.

Example: You have tried to write every morning for three separate stretches — and abandoned it each time within two weeks. On the fourth attempt, you tell your mastermind group: 'I will publish 500 words every weekday for 90 days. If I miss a day, I will post an explanation in the group chat.' Suddenly the calculus changes. On day 11, when you feel like skipping, the thought of typing 'I didn't write today because I was tired' to five people who respect you is more uncomfortable than opening the draft. You write. The commitment is the same one you made silently three times before. The only difference is that someone is watching.

Try this: Choose one commitment you are actively working on — ideally one you have struggled to maintain. Tell one specific person about it today: what you will do, how often, and for how long. Ask them to check in with you at a defined interval (weekly is a good starting point). Write down the exact words you used and who you told. Notice the shift in internal pressure between the moment before you told them and the moment after. That shift is the accountability mechanism activating.