Recorded·Midterm 20 Oct: in — Block 2: “I always ask some discounting questions” (10/15 τ 23:34)·P9: Passing — last confirming re-check 22 Sep. Edited after it — 22 Sep: the quotation round corrected quotations and citations against their sources; 29 Sep: the merge annotated its audit block (superseded figures marked) and fixed one rendering slip; 13 Oct: edits by the midterm batch; 16 Oct: the 15 Oct review's remarks added as Exam signals and links. Those edits were checked by the editing passes' own math, quotation and leak runs, not by a new audit.