The article argues that AI has increased the cost of carrying tech debt, as companies with high-quality codebases can benefit more from generative AI tools, while those with legacy codebases struggle to adopt them. This is because AI tools perform better with simple, well-structured code, but struggle with complex, high-debt codebases. To overcome this, the article suggests that human experts should refactor legacy code to make it more AI-friendly. This requires a shift towards a higher level of abstraction and a focus on architecture rather than implementation details.