diff --git a/Common/Thread/ThreadUtil.h b/Common/Thread/ThreadUtil.h
index 0a6b122e3c..336ce9337b 100644
--- a/Common/Thread/ThreadUtil.h
+++ b/Common/Thread/ThreadUtil.h
@@ -2,6 +2,10 @@
 
 #include <mutex>
 
+// I plan to experiment with these to see if this approach can also work in C++.
+// The major advantage compared to a normal mutex is that we use the type system
+// to enforce that the resource is only accessed when the mutex is locked.
+
 template<class T>
 class RustMutexProxy {
 public: