My favorite Bret Victor talk ever is „Drawing dynamic visualizations“ [1] that made me try to reverse engineer [2] the demonstrated tool that he sadly never released.

[1]: https://youtu.be/ef2jpjTEB5U?si=S7sYRIDJKbdiwYml

[2]: https://youtube.com/playlist?list=PLfGbKGqfmpEJofmpKra57N0FT...