What is the "hell yes or no" philosophy?

The "hell yes or no" philosophy, introduced by Derek Sivers, is a decision-making framework where you say yes only to things that excite you tremendously. If an opportunity or request doesn't elicit an enthusiastic "hell yeah", then the answer should be no. Sivers explained the concept as a response to over-committing; by saying "no" regularly, you save your time and energy for truly compelling opportunities. This approach helps in maintaining control over one’s schedule, prioritizing engagements, and managing life's demands more effectively 1.