21 October 2025

30 links · Tuesday

Tidy Up Your Data — Yakir Havin

One of the very first things I teach in my spreadsheets course is how to structure data properly. In order to take advantage of the power of spreadsheet functions and to do any basic analysis, the underlying data needs to be organised in the right way, and unf…

On being lost

There is this pressure to know what you’re doing. To have purpose, direction. To know what you’re working towards. What you care about. To be driven. There’s a reason it is idealised. Being in that state is fantastic. You have clarity. Your movements are fille…

Finding My Rhythm Again - Jeremy Daly

After years of running, my heart finally told me to slow down. This is the story of how a heart condition, burnout, and a year of loss helped me find a new rhythm.

Solving Regex Crosswords with Z3

Adventures in solving regex crosswords using the SMT solver, Z3. Further adventures and misadventures in making the solver fast, in which I learn about far more Z3 features than I knew existed. Some reflections on Z3 and SMT solvers more broadly.

Designing Software for Things that Rot

How a £150 eBay fridge and a decision tree taught me to stop asking internet strangers if my salami would kill me–and why building for rot is nothing like building happy-path apps.

Algorithmic Underground

I have been thinking about something Jean Baudrillard said a lot recently. It comes to mind because of the current moment and what is happening around generative AI. He said, "Art does not die because there is no more art. It dies because there is too much."

Nemawashi and the Meta of Meetings

Nemawashi can be seen as backroom politics, but that shouldn't be the case. The idea is that you check in before a big decision with all the stakeholders and go over all the points one on one. Making sure everyone fully understands what needs to be discussed a…

LLMs Can Get Brain Rot

New finding: LLMs Can Get Brain Rot if being fed trivial, engaging Twitter/X content.

ChatGPT Atlas

ChatGPT Atlas, the browser with ChatGPT built it. Get instant answers, summaries, and smart web help—right from any page. With privacy settings you can control. Available now for MacOS.

Interpolation Methods

A collection of useful interpolation methods, theory and implementation

The Greatness of Text Adventures

Text adventures are weird. They are so weird I don’t know how to write this article, so prepare to read something even more rambly than usual. Normally, when this happens, I decide not to publish the article. But

Postman Status

Welcome to Postman's home for real-time and historical data on system performance.