Adult Sheldon (VO) in “Unfinished Business”

Scientific rivalries are a fact of life. When two competing scientists work on a project, it can devolve into an intellectual boxing match. Over the years, there's been a few classic heavyweight bouts. Newton and Leibniz. Tesla and Edison. And in a lesser-known but equally brutal bout Linkletter versus Sturgis, The Tussle with No Muscle.