Yeah, whether or not it's really 'gnarly', that is the key. <G>
For example, say the states of the EPR beams were known (gnarly-not) on sending: then, even though they could be correlated so that the combined state was the same as for the gnarly case, you would just have data storage and retrieval, akin to holography. There would be no action at a distance.
That depends on the states being indeterminate until the interaction of one EPR beam with the input at "Alice". The other EPR beam must be fixed or 'collapsed' at the same time wherever it is, because the total state of the 2-beam system is conserved. A classical communication is sent, which in itself contains no information about the former state of the input beam, only about operations that when performed on the second EPR beam, will transform it to an identical output.
So, the action-at-a-distance could be FTL, but a signal must still be sent to get the information out, and that can't be FTL.
FWIW--nocertaintyaboutit. |