0 stands for origin and beginning, and everything starts from 0. Mathematics is a wonderful thing, which covers the whole world. Someone asked, mathematically speaking, 0 is not the smallest, how to explain-1-2-3- infinity? In fact, 0 can also be the beginning of-1-2-3- infinity. If the universe starts from a starting point, then we use 0 to indicate that 1 2 3 4 5 has time and space. Similarly, 0-1 -2 -3 -4 also covers the same content as 1 2 3 4. We can't rule out the day when the universe will return to zero. Can't say that day. The sky is just the universe according to the law of the earth's rotation. In other words, the so-called time is just our illusion about the movement of the universe. In fact, in the existing universe, we think it is a normal universe (because we are alive), that is, in a universe developed like 0 1 2 3 4. We will never see a universe like 0-1 -2 -3. I don't rule out that 0 is developed on both sides. Maybe one side is 0 1 2 3 4, and the other side is 0-1 -2 -3 -4. 0 represents the midpoint and starting point of the universe, even though we humans have achieved 0.2468, or 0 100 200 300 or even faster, to promote the development of the universe with more complicated laws. We know that the number in mathematics is infinite and endless, just like the universe we live in. Even at any moment, we can return to 0 from the power of 10, but it is impossible to reach-1. Why? The universe we live in (we can think of it as a normal universe or a negative universe) is in such a progressive law. If you insist that he has three zeros, then there is one in the positive and negative universe, and the other zero is the beginning of life. Life in the universe is not accidental, but inevitable.