By Steph Harmon
Why do humans make art? Is it a byproduct of our biology, a means of making sense of the world – or is it all about sex?
David Walsh is not a man to do things by halves.
Most people already know this, of course; read anything written about the gambler-cum-art collector and you'll find no shortage of excess. But staring with the gallery owner at one of his latest acquisitions – a lifesize fibreglass sculpture of a blue-haired anime boy, who wears nothing but a triumphant expression as he grasps his penis, TA-DA!, with a spiralling torrent of semen frozen in the air around him – the point is really driven home.