Editor’s note: This analysis is part of The Atlantic’s investigation into how YouTube videos are taken to train AI tools. You can use the search tool directly here, to see whether videos you’ve created or watched are included in the data sets. This work is part of AI Watchdog, The Atlantic’s ongoing investigation into the generative-AI industry.When Jon Peters uploaded his first video to YouTube in 2010, he had no idea where it would lead. He was a professional woodworker running a small busines...