THE FIRST DRAFT IS FREE. THE FINAL JUDGMENT IS NOT

Summary from the TLDR Marketing newsletter

AI operates on what researchers call a jagged frontier, capable enough on some tasks to make people faster and more accurate, then unexpectedly unreliable on a similarly difficult task next to it. The failure mode isn't an obviously broken draft - it's a plausible one, since AI output now arrives organized, confident, and complete enough that reviewing it feels like editing instead of investigating. In one study, accuracy on a harder business problem fell by up to 24 percentage points among consultants using AI, even though the same tool had earlier produced dramatic productivity gains on easier tasks.