> This is what happens with poor internal quality. Progress is rapid initially, but as time goes on it gets harder to add new features. Even small changes require programmers to understand large areas of code, code that's difficult to understand. When they make changes, unexpected breakages occur, leading to long test times and defects that need to be fixed.

Seems familiar!

> Concentrating on high internal quality... is a rarer case, as it requires a skilled and disciplined team to make it happen. But we do occasionally see it.

Vibecoding vs. agentic coding. Same tools used different ways. Very different outcomes.