Key Takeaways
Netflix cut startup time by 70% after migrating to Node.js. That’s measured on a live production system — not a benchmark, not an estimate.
The non-blocking event loop is what separates Node.js from thread-per-request models under load. Understanding that distinction is the whole evaluation.
LinkedIn went from 30 servers to 3. Same traffic. The asynchronous model just handles concurrency differently — and at scale, differently means dramatically.
JavaScript on both sides of the stack is an operational advantage more than a technical one. Smaller teams, less coordination overhead, shared code between layers.
