Who knew Art Garfunkel was a mathematician?

He also does a lot of mathematics, having read it as a student at Columbia. “I’m precise. I think in proportions. I play games with numbers and I proportionalise. I imagine we have now done 1/8th of our interview.” I check my watch.

He even took a job as a maths teacher at one point, in the Seventies, despite being a world famous pop star.

“I’d just got married and moved to Connecticut, and there was a nearby preparatory school and so I taught math there. It was a weird stage of my life, to leave Simon & Garfunkel at the height of our success and become a math teacher. I would talk them through a math problem and ask if anyone had any questions and they would say: “What were the Beatles like?”