Stories by pja

ICFP Programming Contest 2025

Some Lessons from the OpenAI FrontierMath Debacle

I will not be writing a post about Ofcom's Online Safety Act consultation

Critical Vulnerabilities in Exim

You Can’t Trust Amazon When It Feels Threatened

Exim use-after-free vulnerability while reading mail header

The Spread of Feynman Diagrams in the USA, Japan, and the USSR (2004) [pdf]

Scott Aaronson’s “Big Numbers” Talk at Festivaletteratura

Meet the UK Barrister Suing Uber to Make It Pay VAT

Pi and the Mandelbrot Set

Is Spotify Going Bankrupt in 2017? Wall Street Delivers Another Red Flag

A Truly Fancy Bear: Did Trump Win Because Russia Hacked the Election?

Welcome to the Dark Net

The $8.2B Adtech Fraud Problem That Everyone Is Ignoring

Bank of England Quarterly Bulletin: Digital Currencies

Not everything is awesome

Why we fear Google.

Be it resolved state surveillance is a legitimate defence of our freedoms…

Sony, the Pi makers

On the Decline and (Maybe) Fall of Venture Capital