Domain expertise has always been the real moat

# Summary As AI agents can now generate code without human developers needing deep domain expertise, the competitive advantage has fundamentally shifted from the ability to build software to the ability to verify its correctness. Domain experts (dispatchers, clinical coders, actuaries) can now leverage AI agents effectively because they possess the ground truth about what correct outputs should be, while talented generalist engineers without domain knowledge cannot distinguish between plausible-looking wrong answers and correct ones. The most valuable professionals going forward will be those combining both skill sets—domain expertise and software engineering knowledge—since they alone can verify correctness at both the code and business logic layers.