From what angle does energy dissipation reflect the directionality of macro-process in nature?

What is said upstairs is true, but there is no theory for preaching.

Well, in nature, we use the level of entropy to determine that the energy activities in one area are different from those in other areas. The law of nature can be summarized as follows: entropy always diffuses from high to low, that is to say, energy diffuses from high energy level to low energy level.

The so-called directionality refers to different areas of entropy value. The students upstairs are talking about the directionality of energy diffusion. The energy of heating is greater than the energy in the house, that is, heat, so the energy diffuses from heating to the house.

The heat energy of the engine is higher than the surrounding air or other parts of the car, so the heat diffuses from the engine into the air.

This is the diffusion of energy and the law of nature. Energy diffuses from high to low, that is, we can easily generate heat energy, but it is more difficult to reduce the heat energy of an area or an object.

Hehe, I hope I can help you.