I think this drives your point with incredible wit: “On The Turing Completeness of PowerPoint (SIGBOVIK)” by Tom Wildenhain[1]. (5 minutes video)

[1]: https://youtu.be/uNjxe8ShM-8 (Nerding out should always be hilarious like that!)

[2]: Recording of a guest lecture he gave for the Esoteric Programming Languages course at CMU. (~1h) https://youtu.be/_3loq22TxSc