When a project disappoints, sunk costs whisper that quitting wastes past effort. Remember: the past is paid; only future returns matter. Write explicit exit rules—deadlines, thresholds, red flags—before starting, then invite a peer to hold you to them kindly.
Planning fallacy loves optimism. Use reference class forecasting: identify similar past efforts, gather their typical durations and overruns, and anchor your plan there. Add buffers publicly. Sharing the method builds trust and reduces blame, turning realism into a badge of care.
Gate big bets into reversible stages, running premortems before each to imagine failure vividly and prepare mitigations. Define decision checkpoints with measurable signals, not vibes. By welcoming evidence updates, you earn the right to pivot fast, protect morale, and conserve scarce resources.