Why do you think mankind will become extinct? Let's talk about it.

The birth of new life. When a new species is born, there must be another original species as its life carrier. When this life carrier can't effectively confront in a short time, it is likely to disappear from the world. So do humans. Nuclear war, depletion of resources and other celestial bodies hitting the earth are all avoidable for human beings. Human beings are rational primates and have the ability to solve problems such as war and resources. Celestial collision is unlikely to happen in the short term, and human beings have the ability to solve it in the future.

For the sudden attack of new life, human beings will be helpless. Because it spreads quickly and there are many ways to spread. And brand-new species are not easy to recognize. Even more frightening is that the new life has formed a partnership with some of its original hosts. When it invades other lives, it will bring more terrible disasters to other lives. Because they have been widely lurking in every corner, once they evolve, they will be scared.

Repeatedly, the disappearance of creatures will naturally lead to the birth of new creatures. I think paleontology is most likely to be extinct. (pure individual)