>>9881688

>>9881681

Say I have two coins, magically linked, and when you flip one coin to heads, the other turns tails. However, you can't determine if either is heads or tails until you catch them. Until then, these magical coins are constantly spinning and the outcome unknown. You can't decide to pin the coin into a particular state, the result is always totally random and outside your ability to control. Further, you can never tell if either magic coin has been flipped, you can only read the random result and report it.

So I give you one, and you magically teleport to a galaxy far, far away, while I have the other.

So we decide, adjusting for relativity and the distance between us, that I'll catch my coin at a predetermined synchronized time, at which point you'll catch yours, and see the result.

But... As the result is random and you can't even confirm if or when I've flipped the coin, we've no way to communicate anything this way.

While it's entirely possible to violate the speed of light in a number of ephemeral ways, it's impossible to transmit information at faster than the speed of light (which is, really, just the speed of information propagation or causality) lest you start warping or bypassing the distance somehow. These magic coins, thus, do not violate this law, and this is the same fashion in which quantum entanglement respects it.

But you could send sealed messages all over the world, and just have everyone open theirs at UTC midnight. (Okay, still not a violation, assuming the sealed messages with the information arrive via UPS Air - but fun at geek parties.)