I hadn't watched the video. What impressed me was the Doc talking to the driver, and telling him you may feel OK now, but could have a delayed reaction. Oh yeah.... I was a Pharmacy Tech at the county hospital here in Phoenix before I retired. People come in and have no idea what's going on. Guy had a heart attack eating a hamburger & didn't feel the symptoms. Another guy caught on fire (!) on his back, didn't realize it, was burning and started talking to his buddy, who had sense enough to roll him on the ground & get the fire out. People go into shock & don't realize they're injured. I think concussions are the scariest thing in racing, cuz ya just don't realize it. Am so glad NHRA has a Doc there who can check the driver out.