Articles

The daily brief tells you what happened. These explain the ideas underneath it — one concept at a time, in plain English, each with a two-minute game so it actually sticks.

EXPLAINER

What an AI "Skill" Actually Is

A skill is a packaged bundle of instructions — sometimes with scripts or templates attached — for doing one specific kind of task well. The point isn't the bundling. It's that an agent can have dozens of skills available at once without any of them costing context until the moment one is actually needed.

Aug 28, 2026 · 2 min read · includes a 2-min game 🎮

EXPLAINER

Why "Use the Smartest Model" Is Bad Advice

AI providers ship several model tiers on purpose — fast and cheap, balanced, and heavy reasoning. Reaching for the biggest one out of habit costs you time and money on tasks that never needed it, and reaching for the smallest one on a task that genuinely needs multi-step reasoning gets you a confident wrong answer instead of a slow right one.

Aug 28, 2026 · 3 min read · includes a 2-min game 🎮