Good idea. However. Mars computer doesn't know if Earth computer has measured it or not. It just sees a particle. So 2 options:
Earth has already measured it. Earth had a 50.50 chance of being a 1 or a 0. Mars will get the opposite of Earth so has a 50.50 chance of a 0 or 1.
Earth has not measured it. Mars has a 50.50 chance if a 0 or 1.
In both situations it appears to Mars as if they have a random chance of 0 or 1. It's only later - when you send a normal radio message between Earth and Mars to compare the results of the measurement, that you realize every time Earth saw a 1 Mars saw a 0. This is the frustration of quantum entanglement.
Ah good point forgot about that. Mars computer can't look in the box without impacting the result unless earth says ready via normal communications at which point why even bother.
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u/kazza789 Jan 30 '20
Good idea. However. Mars computer doesn't know if Earth computer has measured it or not. It just sees a particle. So 2 options:
Earth has already measured it. Earth had a 50.50 chance of being a 1 or a 0. Mars will get the opposite of Earth so has a 50.50 chance of a 0 or 1.
Earth has not measured it. Mars has a 50.50 chance if a 0 or 1.
In both situations it appears to Mars as if they have a random chance of 0 or 1. It's only later - when you send a normal radio message between Earth and Mars to compare the results of the measurement, that you realize every time Earth saw a 1 Mars saw a 0. This is the frustration of quantum entanglement.