diff --git a/docs/plan/level-assets.md b/docs/plan/level-assets.md
index 2677305..15f13bf 100644
--- a/docs/plan/level-assets.md
+++ b/docs/plan/level-assets.md
@@ -1663,6 +1663,24 @@ look like.
 terminator sits at the same index on both levels. No `gc_formats` module exists
 for this yet; it is characterised, not parsed.
 
+**Where the pointers go.** Following them shows what `gameplay.bin` indexes. The
+leading table is 39 words, all of which land inside the file, and three clusters
+dominate: near 150,000, near 800,000 and near 1,050,000.
+
+The region near 797,808 is **position data** -- 31 consecutive plausible floats
+that group cleanly into xyz triples:
+
+    246.948 201.015  73.867 |  88.240 186.000 302.598 | 107.712  12.723 183.125
+    353.591 126.365  19.962 | 182.068 374.001 122.567 | 116.961 265.001 437.866
+
+and the region near 797,456 is **direction data** -- unit-length vectors:
+
+    0.969 0.945 0.733 | -0.120 0.433 0.250 | -0.866 0.000 0.267
+
+So the file's leading words are a table of pointers into float arrays, not a
+flat list of small integers. The earlier reading of it as "u32 pointers holding
+nothing" was too quick: it is a pointer table *into data that is present*.
+
 **On volumes.** Nothing resembling volumes was found here. `gameplay.bin` is
 u32 pointers throughout and holds no float data in its first 64 words read as
 `f32` (59 of 64 are denormals, i.e. small integers reinterpreted). Volumes remain