Theoretical physicist Stephon Alexander was 12 years old when his father bought him a saxophone at a garage sale near their home in the Bronx, New York. Soon after he heard Ornette Coleman, a pioneer of free jazz, on the radio. “There was this saxophone playing that was completely out there, completely wild,” he recalls. “You could just play whatever you want and make up whatever you want.”

Alexander, a jazz saxophonist who now directs the Brown University Center for Theoretical Physics and Innovation, in Providence, Rhode Island, says: “I would not be the physicist I am today if weren't for my practice as a musician, especially as an improvisational musician.” He credits it for making him “more fluid and flexible mentally in terms of approaching and attacking physics problems,” some of which he ponders while watching performances in New York jazz clubs.

In the final episode of Creativity in Science, a six-part podcast series, Alexander also lists his former high school physics teacher Daniel Kaplan as a key influence. He says that Kaplan, a professionally-trained jazz musician, taught him that “intuition is the lifeblood of a good physicist.”

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