My clothing may usually be black, but my life and the art I love are filled with color. In fact I have collected a number of artworks that seem to me to be almost entirely about how color can create strong emotional effects and connections. The most inspiring examples are a couple of pieces built into my apartment in New York, inspired by the great American artist James Turrell by brilliantly combining lighting with architectural and perceptual know-how. One is a hologram prism of blues, blacks and golds which can only be seen from the side and, in the upstairs ceiling, we have a rectangle of blue infinity. I have never seen anyone stare up into the Turrell without lapsing into a kind of ecstatic trance. As Turrell himself put it, “Seeing is a very sensuous act – there’s a sweet deliciousness to feeling yourself see something”. If more brand experiences offered us a “sweet deliciousness”, what a wonderful world it would be.