try inventing a system using the marbles i describe in an answer above. you just go round in circles. the problem is that there's no "useful" information "coming out".

two people are both observing random processes. they happen to see related results, but they don't "know" that unless they get together and compare notes.

it's like you and i both flip a magic nonlocal coin, and we both flip heads. how does that let me tell you something? it doesn't. all you know is that i just flipped heads (and really you don't even know that - you only know that if i had flipped the coin, i would have seen heads...).