Re: Why we need computers calling balls and strikes
If tennis can do it -- and do it efficiently -- there's no reason baseball can't. Not exactly apples-to-apples, but you get the drift. This isn't all that complicated with today's technology. And not EVERY call would be reviewed. Just the ones that are challenged. Wouldn't take but more than a few seconds ... just like when shots are challenged in tennis.
The calling of balls/strikes is a huge issue in baseball. One that certainly needs fixed. Guys are all over the map with their respective strike zones.