Carsten Höller: ‘It is impossible to travel down a slide without smiling’

From the Tate’s helter skelters to upside-down goggles and mushroom-munching reindeer, Carsten Höller is the most exciting of artists. Tim Adams meets him in Stockholm to hear what he plans nextThere must be a reason,” Carsten Höller says, “why we don’t remember early childhood. Maybe it is genetic, maybe it is something else…”Whatever the reason, over the summer on London’s South Bank, Höller – the authentic Willy Wonka of contemporary art – will do his utmost to re