Terry Gross

Duvall, who died Feb. 15, often played intense, combative characters. His film credits include The Godfather, Apocalypse Now, The Great Santini and Lonesome Dove. Originally broadcast in 1996 and 2010.

Michael Pollan. His new book, titled "A World Appears: A Journey Into Consciousness," is about different ways neurobiologists and engineers are trying to figure out the source of consciousness and whether AI can ever achieve it. Pollan also writes about how Zen Buddhists, writers and philosophers approach the idea of self and consciousness.

Anthropic is one of the world's most powerful AI firms. New Yorker writer Gideon Lewis-Kraus explains how they're trying to make chatbot Claude more ethical, and the implications of AI's widening use.