When they show three pitches from the same pitcher (eg fastball, slider and curve) superimposed together and all three remain on the same track for 30 feet and then spin off in three different directions, i’m Glad that I am not in the batter’s box.
I believe this accounts for both the increasing number of whiffs and the increasing incidence of Tommy John procedures.
Warren Spahn pitched his first complete game before Tommy John was born and would have had more if it wasn’t for that damned war.