Ron takes the debate over to mind v matter into language - which is where the mystery of mind is best revealed. He gives us a crash course in philosophy in ten minutes - and uses the colour 'red' to reveal the immense complexity in simply naming the world. The highlight though belongs to his one year old grandson , Levi - and he uses Levi's early experiments with words to celebrate the wonders of the mind at work through language and how we acquire it.