When will mankind end?

Your question is too general. It depends on how you define the concept of "person". Strictly speaking, it is impossible for human beings to perish. The almost extinct human species in this world, whether it is yellow skin, black skin, brown skin, white skin, even blue skin and green skin, whether it is a giant human with a height of three or four meters or a small human with a height of less than half a meter, are all German secrets of human beings who moved to the underground cities of the moon during World War II. The earth is just a colonial planet of human beings. Now the moon, Mars and meteorite belts have long been colonized by human beings. Even if the earth is completely destroyed by human beings, human beings will not perish. The Bible records the destruction of mankind. More than 6 thousand years ago, it was called God by western whites, and it was called Lord of God by oriental yellow people in modern times. Because of the moral corruption of human beings, he dropped fireballs in the ocean, which triggered a worldwide flood. The flood era is recorded in the historical documents of various countries. Fireballs falling from the sky and the roar of the earth are recorded in the hands of ethnic minorities. In 20 10, a city made of prehistoric stones was discovered 3 kilometers below sea level. The crystal produced by the nuclear explosion was found in the city, and the history was deliberately deleted by some people, making people forget the experience of almost dying, and letting the evil forces gradually lead mankind to the road of self-destruction or re-judgment, even if people here become evil. After being eliminated, there will be human life in other solar systems, and people from other worlds will immigrate here, and a new civilization will emerge here. Otherwise, where do you think the Hutu books preserved by the ancestors of the yellow race came from? Taiji gossip was originally a simple way to record data, but it was distorted by evil forces and became a feudal superstition. Even if these descendants forget who their ancestors are, it doesn't affect the source. The yellow race has lived in this world for a long time, and the white race has only been created for more than 6000 years. This is just a colonial planet, understand? This solar system is just a dust on the edge of the galaxy. Whether there are people here or not does not affect the whole mankind. The vastness of each world in the inner circle of the Milky Way is unimaginable. Even if the solar system is placed in such a world, it is only a stone on the ground. On this small planet, you can walk around it on foot in a few years. On the surface of the round planet in the Milky Way, you will never walk the straight line distance of a point on the planet map. You and some humans just live on a dusty surface in the dust at the edge of the galaxy. You haven't seen the real world. It doesn't matter whether this dust exists or not. What matters is whether the life living in these dust has the value of existence, understand? Therefore, as long as the Milky Way is not destroyed, even if the billions of solar systems on the edge of the Milky Way disappear, mankind will never be completely destroyed. As long as the Milky Way exists, mankind will never perish. To sum up, I think you don't have to worry about the future of mankind at all. Human beings are just one of countless intelligent life species in the galaxy, and other intelligent life are human beings, without any difference.