Let me break down just how categorically false these claims are. First off, Gregg Valentine had the largest arms in the world at 27", and even that looked friggin rediculous. As for the 45" vertical jump. The best high school kids' vertical jump in recent memory belonged to a kid who played Chicago's Farragut high school, Ronnie Fields at 48". No way a 300 pound guy is jumping 45". As for the speed, 9.97s for 100m is faster than most guys ran in the last olympics. Again, not happening for a 300 pounder. To put his claimed 4.3 40 speed into perspective against mere mortals like us... When I played high school football at 6'3", 215 pounds I could run the forty in 4.5, and I was one of the fastest guys in a pretty serious football conference. There are only a few kids nationwide each year that come out of high school running a 4.3, and they tend to be about 6'1", and 185 or 190 pounds. If this kid you speak of does exist, he's the last son of krypton, and I'd check his chest for an S.