diff --git a/_posts/2019-08-19-awdl.md b/_posts/2019-08-19-awdl.md
index 15b82e9..f16f2fb 100644
--- a/_posts/2019-08-19-awdl.md
+++ b/_posts/2019-08-19-awdl.md
@@ -11,7 +11,8 @@ I was mostly prompted to write this post in response to a [Hacker News
 thread](https://news.ycombinator.com/item?id=20735462) recently, which announced
 the release of an open-source implementation of the Apple Wireless Direct Link
 (AWDL) protocol. AWDL is the secret sauce behind AirDrop, peer-to-peer AirPlay
-and some other Apple wireless technologies.
+and some other Apple wireless technologies. Even though everything covered in
+this post was done some time ago, I have never spent the time documenting it. 
 
 With a few exceptions, most wireless networks in the world operate in
 "infrastructure mode" which is where a wireless access point serves one or more