diff --git a/frontend/src/lib/hlsEngine.ts b/frontend/src/lib/hlsEngine.ts
index fc764040..4436c63a 100644
--- a/frontend/src/lib/hlsEngine.ts
+++ b/frontend/src/lib/hlsEngine.ts
@@ -471,7 +471,9 @@ export class HlsEngine {
   // switch to, it retries even a 4xx, six times over about half a minute (measured: seven requests,
   // then the reclaim), and in a throttled page once a minute (four minutes). On a growing one it
   // takes the segment for a gap and moves on, so the error is never fatal. Either way the first
-  // answer is reported. Quiet, since the buffer is still playing.
+  // answer is reported. Quiet, since the buffer is still playing: the picture runs on until the
+  // answer, which restarts from where it was asked, so what played meanwhile is replayed (accepted:
+  // a brief loading state marks it, and nothing the viewer has saved is lost).
   //
   // And except a fatal 404: hls.js gave up on something the server still does not have, and asking
   // again is all that is left.