diff --git a/docs/qfd.md b/docs/qfd.md
index c2d0ce4..3fe773a 100644
--- a/docs/qfd.md
+++ b/docs/qfd.md
@@ -266,7 +266,7 @@ Plain-language summary of what we accepted in exchange for what.
 | ------------------------------------------------ | ---------------------------------------------------------------------------- | ------------------------------------------------------------------------------- | --------- |
 | std (esp-idf-rs) over no_std (esp-hal)           | Heap, threads, VFS, mbedtls, gitoxide-compatible                             | +1 MB binary, +5–10 min builds                                                  | [ADR-001] |
 | Custom widget layer over Ratatui                 | Dirty-rects aligned to e-ink regions; 200 KB binary back                     | 500 LoC we own and maintain                                                     | [ADR-002] |
-| 5.79" strip panel over 7.5" page or 10.3" reader | 27 KB framebuffer, fast partial refresh, "Freewrite" UX                      | Only ~11 visible lines                                                          | [ADR-003] |
+| e-ink medium over FSTN / memory LCD / OLED       | Paper aesthetic; 0 W idle persistence; medium enforces writing posture       | ~200–300 ms typing latency; periodic full-refresh flash (scroll worst-case)     | [ADR-003] |
 | `gitoxide` over `libgit2-sys`                    | Pure Rust, modular, no FFI cross-compile pain                                | Smart-HTTP path is newer; PSRAM profile unproven (spike 7)                      | [ADR-004] |
 | HTTPS + PAT over OAuth device-flow or SSH        | Simplest auth that `gitoxide` smart-HTTP already supports                    | Long-lived secret on device; in v0.1 the PAT is compiled into the binary (dev-only target user makes this acceptable); v0.9 moves it to encrypted NVS | [ADR-005] |
 | `std::thread` over `embassy` or `tokio`          | Boring, debuggable, real stack traces; no exec to tune                       | ~76 KB total stack across 5 tasks                                               | [ADR-006] |