🔧 Escaping the Event Loop — A Deep Dive into worker_threads (Part 3/3)

In part 1, we built the core stack/microtask/macrotask model. In part 2, we saw how the browser and Node implement that model differently — rendering interleaved with tasks in the browser, libuv's phase-based loop in Node.

Both of those posts share an unspoken assumption: your callbacks are fast. A few milliseconds, do their thing, return, let...