What does it mean that the commitment to capacity ratio?

Your active commitments should never exceed your capacity — track both.

Example: You sit down on a Sunday evening and list every active commitment: your day job (45 hours/week with commute and meetings), the side project you promised your friend (8 hours/week), the online course you're halfway through (4 hours/week), the volunteer board position (3 hours/week), the home renovation you started (5 hours/week), and the three 'quick favors' people asked for that you said yes to without thinking (6 hours/week total). The sum is 71 hours per week. Then you check your capacity log from L-0962: your measured productive capacity is 38 hours per week. Your commitment-to-capacity ratio is 71 divided by 38 — roughly 1.87. You are nearly twice overcommitted. Not metaphorically. Mathematically. Something will be dropped, delayed, or done badly. The only question is which commitments suffer and whether you choose deliberately or let entropy decide.

Try this: Open a blank document. List every active commitment you hold right now — professional, personal, social, household, health, learning, creative. For each one, estimate the weekly hours it realistically requires, then add 30% (this corrects for the planning fallacy — you will resist this adjustment, do it anyway). Sum the total. Divide by your measured weekly capacity from L-0962 (if you skipped that lesson, use 35 hours as a conservative default). Write the ratio. If it is above 1.0, circle it in red. You are currently overcommitted by a mathematically precise amount, and no productivity system can fix it. Something must be cut, deferred, or delegated. Pick one commitment to remove or reduce this week.