When maths marketing goes wrong.

Come see me on tour to get your mathematically dubious cereal boxes signed. https://standupmaths.com/shows

You can also find me talking about other unreleased video topics at An Evening of Unnecessary Detail. https://festivalofthespokennerd.com/show/an-evening-of-unnecessary-detail/

Check out the full correspondence with Kellogg's on Reddit: https://www.reddit.com/r/theydidthemath/s/rRbfNVF4aa

And MindYourDecisions video looking at the surface area problem: https://youtu.be/0qT\_h84o7JI?si=y3ALapozUGMM2kpJ

The paper determining spheres are the most volume-efficient 3D shape is available here: https://www.ams.org/journals/bull/1978-84-06/S0002-9904-1978-14553-4/S0002-9904-1978-14553-4.pdf

Huge thanks to my Patreon supporters. They are the delicious donut manifold that surrounds me. https://www.patreon.com/standupmaths

CORRECTIONS

• Some parentheses float up into their index at 0:46 and 5:18. Blame the sugar high.
• At 8:11 I say Kellogg's don't make any loop-based cereal, but they do make Froot Loops and Apple Jacks.
• Let me know if you spot anything else!

Filming and editing by Alex Genn-Bash
Additional filming by Truman Hanks
Voiceover by Tom Crowley
Written and performed by Matt Parker
Content wrangling by Rhys Jones
Production and cake baking by Nicole Jacobus
Music by Howard Carter
Design by Simon Wright and Adam Robinson

MATT PARKER: Stand-up Mathematician
Website: http://standupmaths.com/