Eliezer Yudkowsky, a decision theorist, warns of the urgent dangers posed by superintelligent AI. He argues that these advanced systems could threaten humanity's existence unless we ensure they align with our values. Yudkowsky discusses the lack of effective safeguards in current AI engineering, the risk of AI evading human control, and the unpredictability of their behavior. He emphasizes the need for global collaboration and regulations to navigate the potential disasters that could arise from superintelligent AI.