This repository contains the core recommendation system powering the "For You" feed on X. It combines in-network content (from accounts you follow) with out-of-network content (discovered through ...

Learn how a single JavaScript Date() timezone mistake silently corrupts web apps and how to fix timestamp bugs in JS, Python, cron jobs, MySQL, and React SSR.

For people living with exocrine pancreatic insufficiency (EPI) due to cystic fibrosis (CF), the only treatment option is a regimen that can include up to 40 pills a day. With a $250 million investment ...

The lactational amenorrhea method (LAM) is a type of birth control that relies on hormones your body makes while breastfeeding. If you strictly meet the guidelines, LAM can be 98% effective in ...

Gothenburg promised to optimise school admissions with a piece of code. The resulting chaos showed how unaccountable systems are ruining lives We like to imagine that injustice announces itself loudly ...