30 brain reps a day · same drill as everyone
Mixed × + −. One tap per rep. The clock is running the moment you start.
Rep pace 2–5 s · do them in one go or chip away all day
Come back anytime today. You'll resume at rep 8, no dialog, no penalty. That's the whole point of the quota.
Faster than –% of everyone who did today's drill.
Percentile and curve are illustrative. Scoring = accuracy × speed, so guessing fast scores worse than thinking fast, and one-tap answers can't corrupt the measurement. This measures drill speed, nothing more.