Not every number related to a habit is worth recording. Choosing metrics that genuinely predict whether you’re moving in the right direction, rather than ones that are simply easy to count, makes tracking useful instead of just another task competing for your attention.
Separating Vanity Numbers From Useful Ones
A vanity metric feels satisfying to log but doesn’t tell you much about real progress — total days logged in an app, for instance, without any sense of quality or consistency. A useful metric connects directly to the outcome you actually care about achieving over time.
Testing a Metric’s Predictive Value
Before committing to a metric long-term, ask whether changes in that number have historically lined up with changes in how you actually feel or perform. If a metric has stayed flat for months while your real progress clearly shifted, it probably isn’t capturing what matters.
Keeping the List Short
Resist tracking more than one or two metrics per habit, even if several seem relevant. Additional metrics add setup time and mental overhead without proportionally increasing insight, and a shorter list is far more likely to survive busy weeks than a sprawling dashboard of numbers.
Action Step
Pick exactly one metric for your current habit that you believe genuinely predicts progress, and drop any others you’ve been tracking alongside it this week.
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