请问HN：时间循环和部分黑洞？
你好。我是一名来自印度的九年级学生。
人工智能仅用于语法纠正。这些问题都是我自己提出的。
我对两个概念感到困惑：
1. 热力学第二定律：它表明孤立系统的熵是增加的。减少熵需要做功。这是否意味着，尽管广义相对论中的时间膨胀可以导致时间流逝变慢，但时间永远无法倒流，因为那将需要熵的自发减少？
2. 广义相对论：在更强的引力场中，时间流逝得更慢。作为一种思维模型，将其部分理解为在强引力下原子振动/运动的速率降低，从而导致钟表走得更慢，是否是正确的？
我并不是在提出一个新理论。我只是想找出我当前理解中的缺陷。请以高中生的水平进行解释。
谢谢你的时间。
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Hello. I am a 9th grade student from India.<p>AI was used only for grammar correction. These are my own questions.<p>I am confused about two concepts:<p>1. Second Law of Thermodynamics: It states that the entropy of an isolated system increases. Decreasing entropy requires work. Does this imply that while time dilation from General Relativity can cause time to pass slower, time can never run backwards, as that would require a spontaneous decrease in entropy?<p>2. General Relativity: Time passes slower in stronger gravitational fields. As a mental model, is it partially correct to visualize this as the rate of atomic vibrations/motion decreasing in strong gravity, causing clocks to tick slower?<p>I am not proposing a new theory. I am asking to identify flaws in my current understanding. Please explain at a high school level.<p>Thank you for your time.