diff --git a/src/cwtch.md b/src/cwtch.md
index f723eff..ae9244b 100644
--- a/src/cwtch.md
+++ b/src/cwtch.md
@@ -37,6 +37,7 @@ version of the protobufs framework.
 We have removed protobufs entirely from the project by porting this
 functionality over the Tapir.
 
+<!-- PoW as in Proof of Work? -->
 ### PoW Spam Prevention as a Metadata Vector
 
 **Status: Outdated**: Cwtch now uses Token Based Services to separate challenges like PoW from