tl;dr:The article explores the relationship between Test-Driven Development and AI coding assistants like GitHub Copilot. It argues that TDD remains essential even with AI assistance, as it provides fast and accurate feedback and helps in dividing and conquering problems. The article shares tips for using GitHub Copilot with TDD, including starting with context, following the Red-Green-Refactor cycle, backfilling tests, and recognizing Copilot's limitations in refactoring.