It hasn’t even been two decades since the discovery was made -- Small repetitive hits to the head over time accumulated in football games and practices can build up into something significant and scary:  chronic traumatic encephalopathy, or CTE.  But with no sign that American football is going away anytime soon, the question remains of what can be done to better protect players against life-altering injuries like this?  In today’s episode, Jolie and Ernest speak to Tate Fonville of Liberty University about a new approach to designing a football helmet that is more likely to protect against damage to the brain -- by using computational simulation.