Could Santa Claus still existed IF we stripped away the magic? If the ability to bend space time was gone? If we did, what conditions would Santa need to deliver a present to the population of Earth in a single night? Professor Hannah Fry and Michael Stevens explore the historical, geographical, and logistical realities behind these questions, using population data, longitudinal lines, mathematics, and a healthy dose of Christmas curiosity to calculate the impossible routes, speeds, and time spans involved in a 12 hour gift giving bonanza, at a global scale, as completely average human being. Wish them luck! ------------------- For more information about Cancer Research UK, their research, breakthroughs and how you can support them, visit https://www.cancerresearchuk.org/our-research/rest-is-science?utm_source=therestisscience&utm_medium=podcast&utm_campaign=goalhanger_podcast_partnership Cancer Research UK is a registered charity in England and Wales (1089464), Scotland (SC041666), the Isle of Man (1103) and Jersey (247). A company limited by guarantee. Registered company in England and Wales (4325234) and the Isle of Man (5713F). Registered address: 2 Redman Place, London, E20 1JQ. ------------------- Video Editor: Adam Thornton Video & Social: Bex Tyrrell Assistant Producer: Imee Marriott Producer: Becki Hills Senior Producer: Lauren Armstrong-Carter Head Of Digital: Samuel Oakley Exec Producer: Neil Fearn