The ability to distinguish reversible from irreversible decisions changes how carefully each deserves to be made.

Most decisions can be walked back, and the ones that cannot are a different category entirely. Treating them the same is expensive in both directions: agonizing over a reversible choice wastes weeks, and rushing an irreversible one costs years. Speed is nearly free when a door stays open behind you. It is the closing doors that deserve the slow, careful, uncomfortable examination.

Before deciding anything, ask what it would take to undo. If the answer is a week and an awkward email, decide today. If the answer is that you cannot, slow down deliberately, gather one more perspective, and let a night pass before you commit.