When referring this topic, I will think of Poincaré return theorem

could you explain this theorem briefly?

And I'm interested in the connection between death and this theorem.

回復 @啊啊是誰都對：In physics, the Poincaré recurrence theoremstates that certain systems will, after a sufficiently long but finite time, return to a state arbitrarily close to, or exactly the same as, their initial state. So some people suppose, our universe will reoccur over and over again and both every organism on the earth

回復 @圓環之理：So it seems like that "Whatever has happened before will happen again. Whatever has been done before will be done again. There is nothing new under the sun."

回復 @啊啊是誰都對：Yeah