Ethan Mollick highlights a common problem with using AI for summarization: the results tend to be flabby and miss important information. He shares a prompt technique that asks the AI to iteratively increase the density of a summary, producing output that is highly compressed yet still readable. He includes a link that automatically runs the prompt, making it easy for others to try the approach themselves.

This technique addresses a real pain point for anyone relying on AI tools to distill long-form content. By progressively condensing the summary, the method aims to retain key details and nuances that standard summarization prompts often lose, resulting in more useful and information-rich output.