On Mon, Jul 30, 2018 at 8:11 PM, smitra <[email protected]> wrote:
> * >A concept of "influence" without any information transfer is ambiguous. > The meaning of this "influence" will be dependent on the particular > interpretation used, it has no operational meaning.* Communicating is not the same as influencing, communicating means transferring Shannon style information and entanglement can't do that faster than light. But it will still let you influence things faster than light. Quantum entanglement can influence things faster than light but you need more than that to transmit information, you need a standard to measure that change against, and Quantum Mechanics can't provide that standard; all it can do is change one apparently random state to another apparently random state. You and I have quantum entangled coins, I'm on Earth and you're in the Andromeda Galaxy 2 million light years away. I flip my coin 100 times and record my sequences of heads and tails and then just one hour later you do the same thing. We both think our sequences look completely random as they pass all known tests for randomness. You then get into your spaceship that moves at 99.9% the speed of light and visit me. After 2 million years you arrive on Earth and we compare the notes we took on our two sequences and find that all 100 flips are identical. Clearly my coin influenced your coin 2 million light years away and did so in just one hour, but there is no way I can use that to send a message. All it does is change one apparently random sequence to another apparently random sequence, the fact that there is something funny going on and things aren't as random as they appear can only be discovered when the 2 sequences are placed side by side, and that can only be done at the speed of light or less. John K Clark -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
