In October 2016, Udo Kischka suffered a severe stroke. A large intra-cerebral bleed, a bleed deep in the right side of his brain. He was not a typical stroke patient: Professor Kischka was a neurologist and specialist in stroke rehabilitation. Like all stroke patients, he embarked on a journey of recovery. In his case, it was a re-education in his field of expertise. When he uttered the words, 'This is a life changing event' to his wife a few hours...