diff --git a/doc/development/open-questions/index.mdwn b/doc/development/open-questions/index.mdwn
index 5b3cb4a9d..7f0ecd33c 100644
--- a/doc/development/open-questions/index.mdwn
+++ b/doc/development/open-questions/index.mdwn
@@ -67,6 +67,8 @@ Discussion of metacognitive strategies that could have computer aides.
         + possible use: prompt reader to rewrite an idea using their own
           simpler language to show they understand
     * <https://en.wikipedia.org/wiki/Sentiment_analysis>
+        + possible use: during conversations, use this to avoid "heated"
+          language or filter out "heated" conversations. Relatedly: <http://cognitionandculture.net/blogs/hugo-mercier/why-assholes-are-more-likely-to-be-wrong/>.
     * <https://en.wikipedia.org/wiki/Politics_and_the_English_Language>
         + algorithm: etymology?
             + http://etym.org/