Logical arrow of time, 6.1.3
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The source of the macroscopic time asymmetry, aka the second law of thermodynamics, is the difference between prediction and retrodiction.
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In a prediction, the deduction direction is the same as the physical/observer time direction.
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In a retrodiction, the deduction direction is opposite to the physical/observer time direction.
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In other words:
In a prediction, the meta-time direction is the same as the object-time direction.
In a retrodiction, the meta-time direction is opposite to the object-time direction.
— Me@2022-02-18 06:52:27 AM
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— guess —
If a retrodiction is done by a time-opposite observer, he will see the entropy increasing. For him, he is really making a prediction.
— guess
— Me@2013-10-25 3:33 AM
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How to create a time-inverted observer?
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Just invert the retrodiction direction.
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Retrodiction to a backward-time observer is just equivalent to retrodiction-for-backward-time to a forward-time observer.
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However, retrodiction-for-backward-time is just prediction.
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In other words, retrodiction to a backward-time observer is equivalent to a prediction for a normal time direction observer.
That’s why
— guess —
If a retrodiction is done by a time-opposite observer, he will see the entropy increasing. For him, he is really making a prediction.
— guess
— Me@2013-10-25 3:33 AM
— Me@2022-02-18 06:37:59 AM
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2022.02.18 Friday (c) All rights reserved by ACHK
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