The Cost of JavaScript
Addy Osmani breaks down what shipping a megabyte of JavaScript actually costs on real devices — parse, compile, execute, and everything in between.

A Brief History of JavaScript
Brendan Eich on inventing JavaScript in ten days, the politics that shaped it, and the long arc from Mocha to modern ECMAScript.

Rich Harris on frameworks, the web, and the edge
Harris revisits the SPA-vs-MPA argument through the lens of edge runtimes — and pushes back on the idea that SSR-everywhere is a victory for users.

Have Single-Page Apps Ruined the Web?
Rich Harris pushes back on the SPA-vs-MPA dichotomy and sketches transitional apps — server-rendered, JS-enhanced, and progressively interactive.

Rethinking Reactivity
Rich Harris introduces Svelte 3 and argues that reactivity belongs in the compiler, not the runtime — the talk that crystallised the case for disappearing frameworks.

The Main Thread is Overworked & Underpaid
Surma makes the case that the web is the only platform that still pretends threads do not exist — and shows how to move work off the main thread with workers.

In The Loop
Jake Archibald walks through the browser event loop — tasks, microtasks, requestAnimationFrame, and the surprising ways the runtime interleaves your work with rendering.