I am an old guy.. been watching football for as long as i can remember (Colts /.Giants 1958 , vaguely was 6).. my point.. all thru the years watching the NFL , an injury was more of a happenstance.. yesterday , it was surreal, as play after play.. we saw it.. i realize the obvious, bigger, different style, get all that.. is it simply the size of the players? And/ or technique ?