Domain Expertise Is Still the Moat AI Can't Copy
The signal: Hacker News is rallying around a deceptively simple idea—domain expertise, not AI prompting skill, is still the real competitive moat.
Why it matters: Every builder right now is tempted to chase the tool stack—Claude Code, Cursor plugins, second-brain apps—but the signal underneath is that AI amplifies what you already know deeply, it doesn't manufacture judgment from scratch. If you're a generalist with good vibes about AI, you're not building a moat, you're building a treadmill.
The pattern I'm watching: The GitHub trending data this week is almost all AI coding tools—Claude Code forks, Cursor plugins—and yet the highest-engagement conversation is about why expertise still wins. That's not a contradiction, that's a warning: the tools are commoditizing fast, the knowledge underneath them is not.
What I'd do with this: Pick one domain you know better than any AI can fake—healthcare billing, supply chain edge cases, local government procurement, whatever—and build something narrow and deep there. The builders who combine sharp domain knowledge with AI tooling right now are operating in a window that won't stay open long.
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