In the movie are all against the physical theorem that the value of "entropy" in nature increases and the random number increases. That is to say, all of them change in the direction of decreasing the "entropy" value and the smaller the random number. In other words, these "reversed substances" are all in a state from "disorder" to "order". Therefore, when the protagonist and the female scientist in the movie are talking, their palms are opened, but the "reverse bullets" on the table are returned to their hands; when the video is played back under the camera's lens, it looks like we open our palms normally during reverse playback. The same process as the bullet in the palm of the hand falls on the table.
Interestingly, the movie also shows the telemarketing list phenomenon of energy reversal in "retrograde space-time"; when the protagonist rolls over and touches the fire source of "forward space-time" and explodes, the heat released by the explosion in "forward space-time" is equal to It is a lot of heat absorption in "retrograde time and space", which is why the protagonist ends up in a hypothermic state (frozen) instead of being burned to death. Having said so much, when it comes to "entropy", we only need to remember the following two important points: Nature is moving towards maximum chaos (order to disorder) In nature, the value of "entropy" will continue to increase (the law of entropy increase).
In the world in the movie "Tian Neng", there is a future technology that can "reverse" this natural law; that is, it can make the above two key points become: Ability to get things from disorder to order (towards minimal chaos) The "entropy" value will decrease 1.4 Arrow of Time When we can understand "entropy", the concept of energy change in thermodynamics, and understand that nature is moving in the direction of chaos; try to imagine that when we measure "entropy" in a closed system, only When measuring "increase" and not decreasing, doesn't that mean that measuring "entropy" is establishing a kind of "clock"? The concept of "time arrow" starts from the "entropy increase phenomenon".