Lakshmi Narasimhan

Will Vibe Coding Replace Developers? COBOL Already Tried.

Last month I spent about forty minutes arguing with Claude Code about a rate limiter. Not debugging a rate limiter. Not implementing one. Arguing. I had typed “add a usage limit to the free tier” and gotten back something that technically worked — it counted things and stopped you when you hit the limit — but was also completely wrong in about six different ways that I hadn’t specified because I hadn’t thought to specify them.

The Real SaaS Moat AI Can't Replicate

AI can clone your features in an afternoon. What it can’t clone is the thing most founders haven’t bothered to build. Here’s where the actual defensibility lives in 2026.