15 May 2026

29 links · Friday

Most Meaningful Dates on the Web and for an LLM

I recently read this blog post by David Hagen who figured out why the 11th of every month in ordinal form (‘February 11th’) occurs so much less often than every other date (except September of course) in xkcd #1140 (reproduced below):

Systems are Everything, Software is Systems – Wilsons Blog

I was talking to a friend of mine recently and asked them if they wanted to learn a bit more about how to code, they said they didn’t want to. I followed up by claiming that what you learn from designing software is very useful generally, but couldn’t really a…

A letter from 2040 · xydac

A speculative letter from 2040. Trees running computation, mortality as a choice, novelty as currency, and the quiet moment when humanity realized the universe had been waiting.

Scaling As-of Joins

How we built, broke, and re-built our ASOF joins — 6x faster, half the memory of pandas, and scaled to a distributed cluster.

Hauleth's blog - How do I write Elixir tests?

Personal guides for writing tests that are readable and maintainable. Stuff to use, stuff to avoid, and how to organize stuff. Furthermore, I think that mocking must be destroyed.

Product Product Product

Working this past week with Jason Adams has given me a brand-new appreciation for the category of ideas that we engineers call 'product.'

Managed agents are the new Lambda

Managed agents (cloud-hosted agent harnesses) are powerful, but locking yourself into a frontier lab's platform now is risky - here's why and what to do instead.

Mullvad exit IPs as a fingerprinting vector

Mullvad is one of the few VPN providers that offers multiple exit IPs for its servers. If two people connect to the same server, they will usually end up with different public IPs. With only 578 servers (compared to Proton VPN’s 20,000), this kind of vertical …

Work with Codex from anywhere

Use Codex anywhere with the ChatGPT mobile app. Monitor, steer, and approve coding tasks in real time across devices and remote environments.