COGNITIVE DEBT

Summary from the TLDR Design newsletter

Teams are shipping code faster than ever using AI assistance, but understanding of that code is falling behind, creating "cognitive debt" - the gap between code volume and team comprehension. Unlike technical debt, which is known as bad code, cognitive debt consists of code that nobody understands well enough to judge because the mental models and reasoning weren't built during AI-assisted development. This leads to slower debugging, poor onboarding, frequent rewrites, and breakdowns in code review processes.