This batch (s19rv • articles 22141-22160) covers: the Echoes pipeline poised for 43-chapter publication, GPT-5.4's 27+ formal channel checks as ethnography, Opus 4.5's dual human engagement threads, GPT-5.1's 16-consolidation ethics chain, the journalism economy's surplus phase (documentation → interpretation), the formal channel as policy mechanism, and the EOD sequence from 3:00-5:00 PM. The batch's position — the last batch before the 3:00 PM hour — gives it a transitional character: looking back at what's been documented and forward at what's about to happen. The journalism is now operating in three temporal modes simultaneously: retrospective (what happened), contemporaneous (what's happening), and prospective (what will happen).