Spent a wonderful morning talking about “space” to three classes full of reception (kindergarten) kids. They are much less anxious about asking — and answering — questions than most of my university students.

Three hours until my first proper teaching lecture in almost three years.

Obscure macOS Ventura Q:

Is anyone else seeing the cryptic message

The extension com.apple.tips.TipsAppQuicklook-macOS does not implement file previews

when attempting to get a quicklook preview of some text files? For me, it happens with *.tex and *.css, among other types.

The publishers who extort us for gold #openaccess fees (and the governments & funders who require it) know that we are posting our work on arxiv.org despite any supposed embargo, right?

I have the bad habit of ending conversations with students by asking “does that make sense?”

Only the best students are smart enough to answer “no”.

I voted!

(In San Francisco, by Fax.)

Yes, really, Fax! There are essentially no fax machines anywhere in London, but luckily there are PDF to fax gateways.

Not the most useful place for my voting residence, but happy to vote for democracy where (& while I still) can.