" When I met with Dr. Treffet in his hometown of Fond du Lac, Wisconsin, he told me that these innate skills are, in his words, "factory-installed software", or "genetic" memory.
......
Why the brain suppresses these remarkable abilities is still a mystery, but sometimes, when the brain is diseased or damaged, it relents and unleashes the inner genius. "

― , Struck by Genius: How a Brain Injury Made Me a Mathematical Marvel