Senior developers are 19% slower when using AI coding tools. But they think they're faster. That gap should terrify you.
A recent study measured experienced developers using AI-assisted coding tools on real tasks. The result? A measurable 19% slowdown compared to working without AI. The kicker is what happened next.
Those same developers reported feeling more productive. But no, it didn't. Not really. Not even close.
The vibes-over-metrics problem
This is the part that I find concerning and affects my sleep. We're making tooling decisions based on how things feel, not what actually happens.
