David McCarthy 🇺🇦

Was Katie Zacharia set up to fall? They needed to bury the firing of Kimberly Guilfoyle who was uncomfortably close to the Trump family, ex fiancée of Don Jr.. Guilfoyle being fired was the only bit of policy Zacharia announced, but her incompetence made her the story instead. #KatieZacharia

One thing that should really stop is academics embarrassing themselves by signing letters and petitions with their academic titles when their specialization has zero relevance to the topic. Unless you've spent years studying a topic, you are just Jo/e Bloggs with an opinion.

One of the most important debates in philosophy concerns the nature of grounding, and I found this paper to be as useful as any arxiv.org/pdf/2504.00066

introverts who forget they are in a group are all set

"No one shall expel us from the paradise that Cantor and Dedekind created for us" The title of this Quanta article is perhaps a bit harsh, but still, its content is rather shocking www.quantamagazine.org/the-man-who-...

According to nLab, Eilenberg & Mac Lane 1945, `General theory of natural equivalences', introducing categories, functors and natural transformations, was at first rejected on the grounds of having "no content" #Reviewer2 ncatlab.org/nlab/show/ca...

They say that all philosophy is footnotes to Plato, but in fact he merely pre-plagiarized us

Algebraic geometry is monkey business

Posterity not being kind to Frege (From Manin, *A Course in Mathematical Logic for Mathematicians*)

Getting the feeling that I’ve found a book about rings of continuous functions

Mainstream media no longer being so kind to the idea that Trump is playing 4D chess. This from the BBC this morning. #EconSky

From MathOverflow: apparently what you tell five year olds when they ask what adjoint functors are.

What's wild is how common the identity element is. Imagine being a complex polynomial and a permutation of three bananas.