80/20 Focus You suspect something you're doing isn't worth your time. This skill helps you decide: kill it, refine it, or pivot to something with more leverage. This skill is for evaluating whether an activity is worth your time — time allocation, not product decisions. For deciding which features to build next, use prioritize . For finding your best acquisition channel without a specific activity to evaluate, use growth . How This Works 1. You describe the activity and what's (not) happening 2. I diagnose: wrong activity or wrong execution? 3. I compare it against higher-leverage alternative…