— Wotan Ulm
Professor Wotan Ulm (born in 1981) was a professor at the University of Oxford and then at the University of Oxford Earth East 5 after the Yellowstone eruption. He was the author of the bestselling and controversial books Moon-Watcher's Cousins: The Humanoid Radiation Across the Long Earth, An Untuned Golden String: The Higher-Dimensional Topology of the Long Earth and Peer Reviewers and Other Idiots: A Life In Academia. His biography, written by Constance Mellania and published in 2061, was entitled Make Sure You Get This Down Correctly For Once In Your Life, Joscata: The Authorized Biography of Professor Wotan Ulm.
During the events of the Long War, he was giving an explanation to the BBC about the kobolds.
During the events of the Long Mars, he was seen on a news channel run by the Britain West 5 Broadcasting Corporation discussing about the nature of the soft places and showing his comtempt of Mellanier.
An extract from his biography appears in The Long Cosmos. Towards the end of his life, Ulm speculated on the nature of the Long Earth, believing that stepping is linked to our human ability to imagine.