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May 15, 2026

A Personal Letter from George Rosenfeld on Transformative AI

George Rosenfeld is Deputy Director for Global Catastrophic Risks at Coefficient Giving, which covers our Navigating Transformative AI and Biosecurity funds. In April, he wrote a letter to his family and friends about why he thinks AI could transform the world in the coming years, and why the current trajectory worries him.

It’s a personal letter, written for people who are encountering these arguments for the first time. We’re sharing it because we think more people should be having these kinds of conversations.