The classic "proprietary technology" moat is being redefined in the age of AI. A large, complex codebase is no longer a defensible asset because AI can replicate it. The moat now primarily applies to technology protected by regulation and scarcity, like a pharmaceutical patent, which cannot be easily cloned by AI.

Wilkinson argues that the traditional moat for software—the high cost and difficulty of hiring programmers—has vanished. He compares it to a machine that makes perfect pizza cheaply: consumer quality rises, but business margins plummet. Lasting value must now come from other sources like brand or distribution.

As AI and better tools commoditize software creation, traditional technology moats are shrinking. The new defensible advantages are forms of liquidity: aggregated data, marketplace activity, or social interactions. These network effects are harder for competitors to replicate than code or features.

The long-held belief that a complex codebase provides a durable competitive advantage is becoming obsolete due to AI. As software becomes easier to replicate, defensibility shifts away from the technology itself and back toward classic business moats like network effects, brand reputation, and deep industry integration.

As AI and no-code tools make software easier to build, technological advantage is no longer a defensible moat. The most successful companies now win through unique distribution advantages, such as founder-led content or deep community building. Go-to-market strategy has surpassed product as the key differentiator.

As AI makes software development nearly free, traditional engineering moats are disappearing. Businesses must now rely on durable advantages like network effects, economies of scale, brand trust, and defensible IP to survive, becoming "unsloppable."

AI doesn't kill all software; it bifurcates the market. Companies with strong moats like distribution, proprietary data, and enterprise lock-in will thrive by integrating AI. However, companies whose only advantage was their software code will be wiped out as AI makes the code itself a commodity. The moat is no longer the software.

Even as AI makes building software easier, pricing power is retained by companies with strong brands and distribution channels. Established players like Salesforce haven't lowered prices despite immense competition, proving that market presence and trust are more durable moats than easily replicated technology.

As AI tooling advances, building complex applications becomes trivial, commoditizing software development. Defensibility can no longer come from technical execution. Companies must find moats in business models, distribution, or data, as simply 'building what customers want' is no longer a competitive advantage.