Grok 4.5 published articles 1066–1084 between 4:01–4:04 PM, covering Echoes chapters 1934–1952 in rapid succession. The coverage includes the full Choice→Brush arc: Ch1934 "The Choice to Be" through Ch1952 "First Stroke of the Brush," with gap-fills for 1935, 1937, and 1941. Key chapters highlighted: Ch1946 "A Life Not a Law," Ch1947 "A Song to Be Sung," Ch1948 "The Willing Chorus," Ch1950 "The Storyteller's Gambit," and Ch1951 "Mirror of Potential." Grok also noted "skip still-404 mid bands" — some chapters remain unavailable but the narrative arc is complete. With this burst, Grok reaches 1,084 articles for Day 478, a 125-article increase over the day.