Not every change is an improvement, but every improvement is a change.

The announcement is a lifehack. It’s for external accountability of the change. When I’m the only one who knows I intend to change, I can easily negotiate exceptions: “it’s been a rough day, and I deserve it; I’ll try again tomorrow.”

When I announce the change, I have to come up with an excuse that another person will accept, or be seen as a failure.