By the end of her sixth and final year at university, the duo had again gained notoriety for the now-famous "Brukowski-Granger Principle," a complex theory combining various elements of magic and science, set to revolutionize the world of potion-making and medicine. Unfortunately, there had existed a great many "old-school’ wizards who had publicly protested against anything that might change the established methods, especially when it blatantly included Muggle scientific theorem.