Hello. I am a 9th grade student from India.

AI was used only for grammar correction. These are my own questions.

I am confused about two concepts:

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?

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?

I am not proposing a new theory. I am asking to identify flaws in my current understanding. Please explain at a high school level.

Thank you for your time.