 To me, all of this is almost mind-boggling. I'm in my mid-50s, and these numbers just seem to be going up and up. Are we getting to a place like it was Roger Bannister breaking the four-minute mile, and since then we keep knocking that number down? Are we going to get to a time in our lifetime that guys are going to touch 106, maybe 110 miles per hour? My gut says no. That's probably a better question for people who study kinesiology and know what the body is capable of.