Reversibility Core rule: match process depth to undo cost. Most decisions are cheaper to reverse than they look; irreversible ones deserve deliberation and staged commitment. When to Use - Uncertain how much analysis a decision deserves (tech, process, product, org) - Tempted to committee a low-blast-radius choice, or to rush a high-lock-in one - Can redesign the move (pilot, flag, abstraction, time-box) to lower undo cost - High-stakes choice where acting vs waiting have asymmetric recovery profiles When NOT to Use - Already classified this session—decide at matched depth; do not re-label fo…