Between Poincaré's Return

In a closed system, any particle must be able to return to a position infinitely close to its original position after a long period of time. Although the length of this time is far beyond human imagination, it will inevitably be realized. This is the return of Poincaré. This is the most romantic law of the universe and also the most desperate law. No one knows what changes that infinite proximity will bring. In the eternal reincarnation, what Yu Gantang has to do is to sacrifice himself again and again until he finds a different future.