diff --git a/Architecture.md b/Architecture.md
index 69f10c1..d4d488e 100644
--- a/Architecture.md
+++ b/Architecture.md
@@ -55,7 +55,7 @@ src/core/particles/    nodes (the catalogue), compile (a graph → one function
                        emission (which particles are alive at a second — a pure rule, no state)
 src/core/store/        serialize (untrusted JSON → Project), http (one API call), ProjectStore/HttpProjectStore,
                        TextureStore/HttpTextureStore, FontStore/HttpFontStore
-src/core/time.ts       the global clock: one scaled step a frame, shared by the world, the particles and the shaders
+src/core/time.ts       the global clock: one scaled step a frame, shared by the world, the particles, the shaders and the animation preview
 src/runtime/           World, Entity, System interface, Input tracker, CollisionSystem, AnimationSystem, BehaviorSystem
 src/ui/                widget toolkit (generic, knows nothing about assets)
 src/viewport/          view (transforms), items (what to draw), symbols (how to draw it),