Life 3.0

Life 3.0: Being Human in the Age of Artificial Intelligence examines humanity's past, present, and potential futures in light of advancing AI. Tegmark traces the evolution of life from simple chemistry to biological intelligence (Life 1.0) and cultural learning (Life 2.0), then explores scenarios where AI becomes the dominant form of intelligence (Life 3.0). The book synthesizes physics, biology, computer science, and philosophy to argue that how we navigate AI development will determine whether superintelligence becomes humanity's greatest achievement or existential risk.

Tegmark presents multiple future scenarios—from utopian abundance to dystopian control—and emphasizes that the outcome depends on choices made today. He discusses technical AI safety, economic disruption, and the importance of aligning advanced AI systems with human values. The work has become influential in both academic and public discourse on AI futures, shaping conversations about existential risk and long-term AI governance.