Why does decision speed fail?

The most common reason decision speed fails: Treating all decisions as if they deserve the same deliberation time. You apply heavyweight analysis to reversible, low-stakes choices and then have no cognitive budget left for the genuinely irreversible ones. The signature tell: you spend forty-five minutes choosing a restaurant and forty-five seconds choosing a career move — because the restaurant decision feels more tractable and the career decision feels too big to start.

The fix: Identify a decision you're currently sitting on. Write down: (1) your current confidence level as a percentage, (2) what additional information you'd need to reach 90% confidence, (3) how long that information would take to gather, and (4) the cost of delay — what value you lose for each day the decision remains unmade. If the cost of delay exceeds the expected value of the additional information, decide now. Set a timer for fifteen minutes, make the call, and write down what you chose and why.

The underlying principle is straightforward: Sometimes deciding fast is more important than deciding optimally.