Dr Eugenia Cheng, category theorist, has accepted some money from Pizza Express in return for writing some nonsense about pizzas.

This doesn’t really merit a post here, apart from to point out that Dr Cheng very scrupulously denied taking any kind of payment the last time she got a “formula for the perfect X” story in the papers, linked to a clotted cream company.

**Read: ***On the perfect size for a pizza*, by Eugenia Cheng

*via MetaFilter.*

It’s interesting that having done a clotted cream thing for no payment, she’s presumably now getting approached by other companies to do maths things. To be fair, she’s by no means the only/worst culprit for this, and at least it looks like she’s thought about the maths for more than 2 seconds, but it’s still not superb.