User contributions
- 21:35, 25 October 2021 (diff | hist) . . (+290) . . m Talk:2529: Unsolved Math Problems (I swear I recognize the "curve" from the last panel as something from "Space Child's Mother Goose".)
- 03:57, 25 October 2021 (diff | hist) . . (+1) . . Talk:2529: Unsolved Math Problems (I swear I recognize the "curve" from the last panel as something from Piet Hein's "Space Child's Mother Goose".)