‘I was really angry at this fly,’ the artist Madelon Vriesendorp explains with a grin as I hold out my hand to shake hers, which is in a splint. ‘I jumped onto the bed to swat it, fell over and broke my wrist.’ Vriesendorp is showing me around her latest exhibition, which follows a long list of achievements: she co-founded the ground-breaking architectural practice OMA, and her illustrations of architectural theory defined its visual language for a generation.