The Biggest Risk in AI-Assisted Coding Might Be Your Own Brain

This story was originally published on HackerNoon at: https://hackernoon.com/the-biggest-risk-in-ai-assisted-coding-might-be-your-own-brain . A 2025 randomized trial found experienced developers were 19% slower with AI tools while believing they were 20% faster. METR has since marked those results out Check more stories related to programming at: https://hackernoon.com/c/programming . You can also check exclusive content about #ai-assisted-coding , #developer-productivity , #ai-coding-tools , #automation-bias , #cognitive-fluency , #human-ai-interaction , #ai-code-review , #metr-ai-productivity-study , and more. This story was written by: @beyondthecode . Learn more about this writer by checking @beyondthecode's about page, and for more stories, please visit hackernoon.com . A 2025 randomized trial found experienced developers were 19% slower with AI tools while believing they were 20% faster. METR has since marked those results out of date, and its follow-up was unreliable, so the speed question is open. The perception gap is the lasting finding. This piece uses psychology (fluency, automation bias, the IKEA effect) to explain it and offers a workflow to counter it.