Electronic sign stealing: A baseball scandal two decades ago in Japan

"But as technology improves, it's an endless battle," he said on his own YouTube channel. "I think the only solution is to move to a system where there are no physical signs, only audible ones between the manager, catcher and pitchers. The technology is there to allow for this like you have with the quarterbacks in the NFL, getting instructions from the bench with audio equipment in their helmets."

The issue with this is that, unlike the NFL where the QB gets the play from a coach in the sidelines, in baseball the pitch is decided, not from the manager in the dugout, but thru a "discussion" between the catcher and pitcher.

But if audio equipment is used, the batter next to the catcher could hear what the catcher is saying to the pitcher. No catcher would want that.

So it has to be non-audio from the catcher, like instead maybe the catcher pressing a button that sends a wireless signal to the pitcher, and the pitcher could then nod yes or no about the pitch selection.