Joe asked: Whenever i ask a question about baseball , people always separate the modern era and the pre modern era. Why? What are the pros and cons to the pre modern era and the rules of the game at the time?
Do you think the games rules are better now or before? and why?

Joe M asked: How do baseball announcers tell the difference between a slider and a fastball when announcing games?
I can more or less tell a curve ball since it has a looping motion. I’m guessing a change up can be determined by the speedometer. New to baseball. Thanks!