When Young Children First Begin To Ask 'why?' They Embark On A Journey With No Final Destination. The Need To Make Sense Of The World As A Whole Is An Ultimate Curiosity That Lies At The Root Of All Human Religions. It Has, In Many Cultures, Shaped And Motivated A More Down To Earth Scientific Interest In The Physical World, Which Could Therefore Be Described As Penultimate Curiosity. These Two Manifestations Of Curiosity Have A History Of Connection That Goes Back Deep Into The Human Past. Tracing That History All The Way From Cave Painting To Quantum Physics, This Book (a Collaboration Between A Painter And A Physical Scientist That Uses Illustrations Throughout The Narrative) Sets Out To Explain The Nature Of The Long Entanglement Between Religion And Science: The Ultimate And The Penultimate Curiosity.