diff --git a/reflect.md b/reflect.md
index e1213aa98..52713a5cb 100644
--- a/reflect.md
+++ b/reflect.md
@@ -1,4 +1,5 @@
 # reflect
 
 - to do as a [[true mirror]].
+  - to invert a set of dimensions, for example, but keep enough information to reconstruct.