Simon Willison's coverage of Andrej Karpathy's insights underscores a critical trend: AI tools are not just augmenting software development but fundamentally altering its economics. Karpathy's invocation of Jevon's paradox suggests that as AI makes software creation easier, demand for bespoke applications will explode. However, this optimism may overlook practical challenges, such as the computational costs of scaling these tools or the risk of diminishing returns as AI-generated solutions proliferate. The real test will be whether these tools can sustain their promise without exhausting resources or overwhelming users with complexity.