- We've all seen the example: Push one domino over. It falls. But so does another domino way off to the side. Only one is pushed, yet two fall.
The problem with this is that only one push's worth of energy was expended. One push's worth of input cannot produce two push's worth of output, for this would violate the law that says you can't get more movement out of something than the amount of force you exert onto it (to put is very simply). Quantum entanglement would mean miraculously multiplying the input so as to get more output for free. I don't think physics would allow that.