Habits

Sixty-six days, and the day you miss

Twenty-one days is a myth from a 1960 book about plastic surgery. The measured answer is longer, much more variable, and more forgiving.

3 min read

A chore is not a habit

Both repeat, and that is where the similarity ends. Treating them the same is why your filter is overdue and your morning routine is fine.

2 min read

The habit you do not need

Almost all habit advice adds something. The highest-return move most weeks is to remove one — and the candidates are easy to spot.

2 min read

Measuring the thing you cannot feel

Steps, sleep, weight, pulse. A number is only worth collecting if it answers a question you would otherwise get wrong by guessing.

2 min read

Habits without streaks

Streak counters work until the first miss, and then they work against you. There is a quieter way.

2 min read