FEATUREDHacker News Frontpage· rssEN16:42 · 08·15
→Four years in, I still don't trust LLMs for real software work
Joshua Barretto, whose open-source libraries sit in FAANG dependency trees, still refuses to use LLMs for anything he cares about. Four years in, he sees no faster, cheaper, or more secure software—just a mountain of demoware. $1.5 trillion later, independent studies on top-level productivity gains are still missing. The AI-generated PRs he receives remain unfit to merge, and frontier models miss obvious bugs that hobbyists catch. His core point: code is an input to development, not an output, and measuring productivity by lines written leads straight to unmaintainable slop.
#Code#Joshua Barretto#FAANG#Open source
why featured
Featured · importance 78 · hook + knowledge + resonance
editor take
A FAANG-depended open-source author says 4 years of AI haven't made software faster, cheaper, or more secure—and AI PRs are still unfit to merge.
sharp
This post lands because the author has standing: his open-source libraries sit in FAANG dependency trees, and he still refuses to use LLMs for anything he cares about. His core argument isn't 'AI can't write code'—it's that code is an input to development, not an output. Measuring productivity by lines written or PRs merged leads straight to unmaintainable slop. $1.5 trillion later, independent studies on top-level productivity gains are still missing; the ones that exist track the wrong metrics or use tiny samples. The AI-generated PRs he receives remain unfit to merge, and frontier models have missed obvious bugs that hobbyists caught by thinking. I'd read this as a sober counterweight—not anti-AI, but a reminder not to confuse 'can generate code' with 'can ship software.'
HKR breakdown
hook ✓knowledge ✓resonance ✓