Here's what it looks like when a popular NFL player explains complicated math

screengrab via Vimeo Baltimore Ravens offensive lineman John Urschel announced on Twitter this week his plan to start his Ph.D. in mathematics at the Massachusetts Institute of Technology this year. The 24-year-old, 305-pound lineman has a well-documented aptitude for math. He earned his bachelor's degree in three years at Penn State and spent his senior year working on a master's degree in mathematics while being paid by Penn State to teach Integral Vector Calculus Trigonometry. Urschel recent...