My daughter and I like to make each other treasure hunts where the clues are a mix of puzzles, riddles, and cryptography.

The little snack I made last time is more than meets the eye…

Before deactivating, I posted on Twitter that I’m leaving for Bluesky.

I’m crushed to have to report that this has irked a person describing themselves in their bio as a “bronze-age AI gigachad”.

I get the feeling I’m not going to miss Twitter much.

This is how the NYT describes Sudoku. Why disavow the lovely maths involved: logic patterns, etc - loads of good stuff? Really they mean “try this math game, minus the arithmetic”.

In fact there’s so much fun related maths I gave a Gresham lecture all about it

www.gresham.ac.uk/watch-now/ma...

My lovely friend @rachellampard.bsky.social and I read the #bookerprize shortlist every year before winner announced. What an amazing six books this year! Impossible choice but for us the beautiful Held, by Anne Michaels, edges it.
(Cameo role for #mathematician Hertha Ayrton a lovely bonus!)

I was lucky enough to visit the Casa Battlo in Barcelona recently. It’s a cathedral of catenaries (and other fabulous curves). Amazing ❤️

www.casabatllo.es/en/