docs/plans A8: Y axis is burden-to-burden, not connection

Both poles of endured<->witnessed manage whose burden: endured = carry
it to spare others; witnessed = be seen to discharge theirs.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015hmgREHNsxYCuim33yUF2c

docs/plans/A8-etr.md

@@ -5,10 +5,10 @@ Driver 4: a **single point on three independent toroidal axes**. ETR is **self-p
 connection** (Anja) — *not* a rest engine, and *not* migration. The axes:
 - **X — assertion ↔ inheritance** = **self-position**: is where I stand self-asserted or inherited?
   *(C1 — reading inferred; Anja to confirm framing.)*
-- **Y — endured ↔ witnessed** = **connection**, read through *others' burden* (both poles are
-  other-directed): **endured** = "I handle it myself to leave others unburdened"; **witnessed** = "I need
-  others to see me, to relieve *them* of the burden." The axis is *how* my state's burden on others is
-  discharged — by hiding vs. by being seen.
+- **Y — endured ↔ witnessed** = the **burden** axis — **burden-to-burden** (both poles are about *whose
+  burden*, not "connection"): **endured** = "I handle it myself to leave others unburdened"; **witnessed**
+  = "I need others to see me, to relieve *them* of the burden." Both poles manage burden; they differ in
+  direction — carry it off others (hide) vs. discharge theirs (be seen).
 - **Z — alimentation ↔ transmutation** = **meaning / coping-direction**: **alimentation** = "do I double
   down" (persist, feed the same course); **transmutation** = "do I dodge" (sidestep, transform). This is
   the **maintain-vs-evolve** sign read at migration (alimentation = maintain; transmutation = evolve).