Uploaded February 2024 | Updated September 2026, 2 weeks ago

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See you all in Wemding, Germany in 2033 for the next installation of this inevitable maths mistake.

Thanks to everyone involved with Zeitpyramide who were hugely welcoming and accomodating. Official Zeitpyramyde website: zeitpyramide.de

Check out Ayliean MacDonald's excellent work on TikTok and indeed YouTube:
tiktok.com/@ayliean/video/7276938427071876385
youtube.com/@Ayliean

We also had an very helpful German-to-English translator in Benjamin Unger who kindly did not translate all of the speeches for me.

Read more about off-by-one errors in my book Humble Pi: mathsgear.co.uk/collections/books/products/humble-pi-signed-paperback

Huge thanks to my Patreon supporters. They lift me up like a 6.5 tonne block. patreon.com/standupmaths

CORRECTIONS
- 01:24 I say "square numbers" when I mean "even square numbers". First corrected by TheSamuelWells
- A few people have noted that the "clarinet" is actually a "soprano saxophone". I am very sorry to all the music nerds.
- Let me know if you spot anything else!

Filming and editing by Alex Genn-Bash
Written and performed by Matt Parker and Ayliean MacDonald
Blocky animations by Willow Marler
Produced by Nicole Jacobus
Music by Howard Carter
Design by Simon Wright and Adam Robinson
All soprano saxophone music was recorded live on location.

MATT PARKER: Stand-up Mathematician
Website: standupmaths.com
US book: penguinrandomhouse.com/books/610964/humble-pi-by-matt-parker
UK book: mathsgear.co.uk/collections/books/products/humble-pi-signed-paperback