Every experiment to date that has been used to calculate Bell's inequalities, perform a quantum eraser, or conduct any experiment utilizing quantum entanglement as an information channel has only been possible through the use of coincidence counters. This unavoidably prevents superluminal communication since, even if a random or purposeful decision appears to be affecting events that have already transpired (as in the delayed choice quantum eraser), the signal from the past cannot be seen/decoded until the coincidence circuit has correlated both the past and future behavior. Thus the "signal" in the past is only visible after it is "sent" from the future, precluding quantum entanglement from being exploited for the purposes of faster-than-light communication or data time travel.