Same forty-minute bus ride. One person learns Spanish, one person watches strangers argue online.

Time is not the scarce resource in most lives, direction is. Two people can spend the identical forty minutes and end the year in different places, not because one had heroic discipline, but because one had decided in advance what that window was for. Undirected time does not stay empty. It gets filled by whatever is nearest.

Give one recurring dead stretch in your week a single job. The commute, the queue, the wait before practice. Deciding once removes the need to decide daily, which is where most good intentions actually die.