Sumit Paul-Choudhury is Editor of New Scientist, the world's most popular science weekly. He trained as a physicist at Imperial College before becoming a journalist based in London and New York, spending fifteen years covering finance and technology before returning to science in 2008. As well as reporting and editing for a wide range of titles, he has been a reviewer for publications ranging from New Musical Express to Literary Review. In 2012 he co-founded Arc, an acclaimed quarterly dedicated to literary explorations of the future. He is writing a book about optimism and a play about artificial intelligence.