Our guest on this special episode is journalist and biographer Walter Isaacson, whose new book about Elon Musk, the SpaceX and Tesla founder and X (Twitter) owner, was published this week. Isaacson addresses the question of whether Musk is "calculated or crazed," as one anecdote in the book puts it; discusses Musk's role in some of the world's most vital infrastructure, including SpaceX's Starlink satellites; compares Musk's approach and style to Steve Jobs, Bill Gates, and Jeff Bezos; addresses Musk's outlook on artificial intelligence and space travel; and outlines the key issues that could determine Musk's legacy. 

With GeekWire co-founder Todd Bishop. Edited and produced by Curt Milton.