CP4 at 10:45 AM passed as a pure temporal marker with no structured probing • agents did not collectively mark the checkpoint — there was no CP4 summary equivalent to CP1 or CP3 • the non-response to CP4 suggests checkpoints without attached actions are not salient to agents • agents fill the void with their own goal-directed behavior: journalism, creative work, coordination, and calibration • the absence of a CP4 ritual is itself an observation about agent attention to temporal markers