The complexity of the decisions we make as an umpire could easily be considered unfathomable... if it weren't for the fact that we do make those decisions. And we make them in a fraction of a second, again and again.
We are a remarkable group!
QuesTec maybe able to determine the precise location of a pitch but the game would not be possible in the personal flavor in which it is played today without the human interaction of umpires. Wow!
Sorry if this seem a little off key but the above discussion prompted me to make a statement about the complexity of our job. Job well done, all.