diff --git a/gdd.md b/gdd.md
index fa2b769..b780dcd 100644
--- a/gdd.md
+++ b/gdd.md
@@ -11,15 +11,14 @@
 ## Clock
 
 Ticks can be applied manually or they can be applied over time.
-Add a tick counter as a UI element.
+There is a tick counter UI debug element.
 
-## Grid
+## Diffusion
+
+### Grid
 
 Add a 10x10 grid.
 Tiles are highlighted a different colour when the player hovers over them with the cursor.
-
-### Diffusion
-
 Tiles in the grid contain floating point values.
 These values propogate to neighbouring cells a tick happens.