Why daily streaks (and daily missions) actually work

Streaks convert a vague goal ("learn to code") into a concrete daily contract: do one meaningful thing today.

But streaks only work if they're honest. Client-side streaks are trivially forgeable, so NeoLearn computes streaks server-side from stored activity dates — one activity counts once per UTC day.

Daily missions add variety: one lesson, one quiz, one challenge. Completing all three earns bonus XP, but the reward is validated and de-duplicated per day.