Very Curious
Have you ever been playing a game of billiards and thought to yourself, “I wonder what’s inside the cue ball?” or “Is the cue ball hollow?” It would appear that someone already possesses knowledge of the subject matter. When one ball is broken open, it reveals another ball that was hiding inside it all along.
At this point, all we can do is speculate about whether or not this was an isolated incident, or whether or not each cue ball has a ball hidden inside of it. Examining the contents of each cue ball is the only way to determine something with absolute certainty without first breaking open each ball.