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If Information cannot move faster than c , what about quantum computing ? It seems to work on the principle of FTL interactions, or am I mistaken?
If you can entangle two photons heading in opposite directions, then quantum entanglement might allow you to communicate instantly at a distance - but only between two points which can be reached at or below the speed of light from the original point of entanglement. In a sense, this would allow quantum communication at twice the speed of light... but this is still a very new field, so it's not clear what is truly possible. I am sure that many stock brokers would love to shave a few milliseconds off the transmission time between two stock exchanges, so they can profit from small differences in the buy and sell prices between the different stock exchanges!