Deceptively simple, makes postcards of big ideas. It visualizes through humour and examples, rather than burying big ideas under maths and charts. This might be how Hemingway would have taught science, in stories. Say as much as needed and leave the reader to fill in from experience. In all, has a way of making connections that are only obvious once you know them. And it progresses this way from how the parts work to a speculative essay on the whole, from physics to a metaphysics, without losing its simple wonder of the way the world works.