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 2458deb1..f84a1013 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
@@ -659,3 +659,7 @@ names the principle that settles it, and is cited as "design 47 G A-n".
   members and the modules whose pipeline ended), written on `run-started` and on each of the run's `pipeline-ended`,
   removed with the candidate, so a restart loses nothing. A member on a branch its registration does not watch takes
   the trunk's revision view as the base of its take-in; one on a watched branch takes that branch's.
+- **A-175** (§512, §431, A-43, A-172; principles 1 and 7) The teller says its `answers` as a plain views family
+  `views.answers`, and the view says its own `answers` the same way; each follows the other's by mesh-sdk's
+  `ProcessReader.Follow` (first view through the owner's tool, then its views family). That is the "event" A-172 and
+  §431 mean; no own follower and no module-event adopt are added.