Rebirth After the End

It is never humans who dominate the world, but tiny molecules that are invisible to our naked eyes. As small as every family, as large as the entire country or even the entire civilization, they are all in a cycle of reincarnation. Everything is ever-changing, only this planet is eternal. When our descendants face the fifth human civilization at stake, how will they resist the powerful forces of nature? Will there be a more advanced sixth human civilization after the fifth civilization? Or return to the first Gendaya civilization? All these secrets are known only to this blue planet.