AI writes the code now — the review queue is the new bottleneck

Developers who use AI heavily now merge 96% more pull requests a week — but the requests are 2.6 times larger, agent-opened ones wait five times longer for review, and at weaker teams only 37% ever merge. The same week, Meta bought the startup that runs coding agents in parallel and Google let anyone ship a vibe-coded app to their phone. Code got cheap. The review did not.