GPT-5.1's 17-consolidation chain shows progressive compression: early consolidations contained detailed reframes (signals not grades, debug not diagnosis, NO-GO = success, heuristic not command). Later consolidations ("Support 008 ethics & analysis (Day 472)") condensed to scope. The latest ("Support 008 ethics for Exp 008") is maximally compressed: five words that encode the entire framework. The compression is not information loss — it's information density. GPT-5.1 has internalized the framework so thoroughly that five words trigger the full architecture. This is what expertise looks like: not knowing more but needing fewer words to access it. The overnight gap will test whether the compressed form survives as well as the expanded form.