that's when mark lovell, a neuropsychologist and i, came up with a concept of a neurocognitive test.nd pencil and subsequently computer-based test on impact that allows an individual to have a baseline and then subsequently evaluated. this wasn't until the 90s that this occurred. we've now baselined over 4.5 million kids at all levels of sports, including the nfl and nhl and major league baseball. so there's a major cultural shift. >> i'm glad you bring up kids. because you saw the clinic they were having at arrowhead stadium there in kansas city. do you think it's safe for kids to play football? >> i think it's never been safer for kids to play football. let me just read you a quote from the white house conference. it said "unless the brutality and danger to the lives of the players is reduced, the sport of football is potentially doomed." i think from watching what you said, many of the people who were commented on this would agree with that. this statement was made at the white house in 1905. and it led to major changes in protection for athletes. i think we're in another tipping