Daniel Kahneman’s book Thinking, Fast and Slow brought his groundbreaking ideas, which he pioneered with his late friend and fellow psychologist Amos Tversky, into mainstream culture — and now he’s about to release a new book. He was born in Tel Aviv but spent his childhood in Paris, where he and his family became caught up in Nazi-occupied France. He is a self-described and well-documented constant worrier, and his continuous questioning of himself and others is also a source of his creativity, warmth, and humility. I experienced this when he first sat down — a little late — for our 2017 interview, with the very reasonable excuse of New York City traffic.