Now imagine that I give you one box and I keep the other box. You don't know what is in your box. It could be a blue or red
link ball, but what you definitely know is that whatever is in
link your box, I have the opposite
link color, right? So if you have a blue ball then I have the red ball. But it's not actually about the outcome, but rather the correlations between two things. It's about how particles behave relative to one another.
link