Checkmarks lie when duration varies

Tracking only completion for a variable-duration habit like meditation creates three nasty edge cases that undermine your data.

First, you lose all ability to differentiate between a ten-minute sit and a twenty-minute one. That means a streak of 30 checkmarks could be 30 ten-minute sessions — which is fine, but you wouldn’t know. If you’re trying to actually build a practice, not just a streak, you need that distinction.

Second, you can’t spot trends. Did you slowly inflate your perception of effort? Without duration data, you have no way to look back and see that your “consistent” meditation habit was actually getting shallower over time. The checkmark gives you binary satisfaction but no signal for regression.

Third, it creates a perverse incentive to cut corners. If the tracker only asks “did you do it?” your brain learns that ten minutes is just as good as twenty. Over months, you’ll naturally drift toward the minimum viable