I see, I actually answered the wrong question, sorry about that. I'm also a bit confused by why it can't be used to send information but here's a try: In the

I see, I actually answered the wrong question, sorry about that. I'm also a bit confused by why it can't be used to send information but here's a try: In the above scenario, if the particle (pair) has completely random spin, one that can only be observed by detection and not by some sort of construction, then each observer sees a completely random bit, regardless of whether it gets "flipped" by the "non-local" observation/communication of the other particle. They'll only be able to discover the correlation after the fact, if they compare notes and thus have to meet up, destroying any non-local benefit. Put another way, if you have a bit with probability p of being 1 ((1-p) of being 0) that you're communicating over the wire but the wire is so noisy as to flip it with probability 1/2, then you won't be able to recover what the transmitted information was. You'll be able to discover the correlation between the bits if you compare notes after the fact but since the "wire" acts as a completely noisy channel, you can't recover the transmitted bit.