Time's Arrow

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投稿論文Our cards model shows two world-views, but as far as we look at the sequence constructed, we can't see them. By making a ring with any sequence constructed in a cards model, we can represent two different time series in terms of two opposite directions of the ring rotation. Using this device, we can restate the thermodynamic discussions. In our ring model classical reversibility and recurrence are described concretely. As a result, ensemble interpretation is shown to be independent from the causal process of events. It shows us some properties, which can't be seen when only the causal process of a system is studied, but at the same time it hides some properties that the process has. In order to retrodict a past state of a system, we can use its time evolution conversely in classical mechanics. There is no such method in statistical mechanics. Hence, usually a certain past state of a system is assumed first and then we observe whether it evolves to the present state. But this is question-begging. If we reconsider this assumption and think of the direction of time in the light of empirical confirmation, the real problem is the confirmation under the assumption that time has a direction. There are two arguments about this. One says that the confirmation of the direction of time is possible. The other says it is impossible. This confusion is due to the interpretation of the proposition; "time has a direction," If you want to confirm which direction time has, then its confirmation is impossible. But if you want to confirm the direction which time already has, it is possible.
慶應義塾大学の論文

Time's Arrow

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