Physicists "turn back time" by returning the state of a quantum computer a fraction of a second into the past, possibly proving the second law of thermodynamics can be violated. The law is related to the idea of the arrow of time that posits the one-way direction of time: from the past to the future

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Physicists "turn back time" by returning the state of a quantum computer a fraction of a second into the past, possibly proving the second law of thermodynamics can be violated. The law is related to the idea of the arrow of time that posits the one-way direction of time: from the past to the future