diff --git a/docs/IDEAS.md b/docs/IDEAS.md
index 1ed298c..69a4fed 100644
--- a/docs/IDEAS.md
+++ b/docs/IDEAS.md
@@ -14,6 +14,7 @@ for that history) and remove it from here once a spec exists.
 - better UX when backend is not available (instead of "TypeError failed to fetch")
 - better UX for activities (list layout without the graphs, detailed view with different graphs for each phase incl. delta with workout)
 - add icon to indicate if an activity has an associated workout
+- modern error displays: have error messages displayed in an ephemeral window
 
 ## Someday / maybe