“Symphonies, perfume, sports cars, graffiti, needlepoint, monuments, tattoos, slang, Ming vases, doodles, poodles, apple strudels. Still life, Second Life, bed knobs and boob jobs” — why do we make any of these things? That question has driven much of the career (and indeed life) of Brian Eno, the man who invented ambient music and has brought his distinctive, at once intellectual and visceral sensibility to the work of bands like Roxy Music, U2, and Coldplay as well as the realm of visual art. Back in September, he laid out all the illuminating and entertaining answers at which he has thus far arrived in giving the BBC’s 2015 John Peel Lecture.