It sounds like something from a movie. A groundbreaking idea, the seed of technology that would change the world, scribbled down on a piece of paper during a casual meal. This is exactly how the foundational ideas behind GPT, the powerful AI language models we know today, first came to be. It wasn't in a fancy lab or a high-tech boardroom. It was on a napkin.

This story shows how big breakthroughs can happen in unexpected ways. Sometimes, the simplest tools can lead to the most complex and important discoveries. The journey of GPT's creation is a perfect example of this.