diff --git a/HACKING.md b/HACKING.md
index cd3fead..fc6c9a6 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -26,6 +26,7 @@ what you need to know to get started hacking on Nativefier.
    Introducing breaking changes willy nilly is a comfort to us developers, but is
    disrespectful to end users who must constantly bend to the flow of breaking changes
    pushed by _all their software_ who think it's "just one breaking change".
+   See [Rich Hickey - Spec-ulation](https://www.youtube.com/watch?v=oyLBGkS5ICk).
 
 4. **Avoid adding npm dependencies**. Each new dep is a complexity & security liability.
    You might be thinking your extra dep is _"just a little extra dep"_, and maybe
@@ -178,4 +179,4 @@ npm run changelog -- $VERSION
 ```
 
 Do follow semantic versioning, and give visibility to breaking changes
-in release notes by prefixing their line with **[BREAKING]**.
\ No newline at end of file
+in release notes by prefixing their line with **[BREAKING]**.