diff --git a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
index 53c21bd7..4ad76b00 100644
--- a/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
+++ b/03-DESIGN/01-to-be/47-milestones/G-20-lead-answers.md
@@ -135,3 +135,6 @@ names the principle that settles it, and is cited as "design 47 G A-n".
   words its calls need (`ledger-upkeep-calls`, `sent-objects-calls`, `put-sessions`, `finding-calls`), the npm package's
   `finding-calls` alone; the npm package makes no session, so its `state.put` refuses a value over one chunk, naming
   it. A-22 holds for TypeScript too: the TS follower keeps no plain-field `Finding` of its own beside the writer.
+- **A-37** (A-16, A-29, A-32; principles 7 and 3) The held writer has a stdio form, `views.NewStdioHeldWriter`, filling
+  `Publish` and `Listen` as A-16's does, so no module writes the adapter; and the held writer holds every finding
+  written through it, its `WriteWire` included, so a reader's findings are in its statement too.