Vibe coding means using natural language prompts to let AI generate software, a practice Andrej Karpathy popularized in early 2025 and tools like Lovable and Cursor have made widespread by mid-2026. Turnbull declared it impossible for larger-scale projects, but replies ranged from cautious support—pairing AI with human oversight for big tasks—to bold claims of already building better enterprise software this way. Both sides agree the final 20% needs engineering discipline to handle security and reliability, as the line between AI assistance and traditional coding shifts with advancing tools.