You imagine what the human world is going to do

Nuclear war. The climate is abnormal.

Robot. Clones.

Alien. Comets hitting the Earth and other things could perish.

I think an alien invasion is the most likely. There are other possibilities that human beings should be able to overcome on their own. But if aliens are much more technologically advanced than humans, it's hard to say. The main thing is "survival of the fittest".

Hehe, I think you're the kind of science fiction movie that you've watched too much to have these ideas, but if I have to ask this question, I think the demise of humanity is because of its own greed

Nuclear warfare has the highest probability of destruction and the highest feasibility.

Look at the anti-missile system cast by the United States, look at what the United States and the European world have done to the world over the centuries, and you can hardly guarantee that all peoples, all countries, have always been patient in the face of American bullying, and now the nuclear threshold has become irreversible.

The most likely future to lead to the destruction of the world would be nuclear war, and the United States would be the culprit, and it would be the Europeans who invaded the entire planet that should curse them to disappear forever.

Pollution, the greenhouse problem is so serious, the Antarctic and Arctic icebergs are melting, and the sea level is rising.

And then it's like the day after tomorrow.

The resources are depleted, so there is a war, a plague, how the last person died, whether he died from the war or the plague only he himself knows,

At least 5.5 billion years from now, the sun will become hey and energy will run out. It is estimated that it is another world big **.

War will not bring humanity to its demise It should be an interstellar catastrophe.

Nuclear war is currently the most likely.

The demise of humanity depends on humanity itself.

But there will be, Savior will appear!!

Terrorism uses biological**.

All evolved into non-humans, and then there was no such thing as human.

Running out of resources. Running out of resources.

Running out of resources. Running out of resources.

Running out of resources.

If you die, it's over!

It was an asteroid that hit the Earth.

The demise of mankind should be said to be inevitable.

When human science and technology have developed to the limit and reached the boundary of the universe, there will be no meaning for human existence. Events that lead to the demise of humanity are low-probability events.

However, if a small probability event is inevitable when the base is infinite, then the extinction of mankind seems inevitable.

Detailed explanation. The process of the destruction of the earth must have nothing to do with man, because man will perish before the destruction of the earth, and human beings cannot destroy the earth, and the earth will age and die like other stars.

People imagine themselves to be great, in fact, how small people are, our ancestors invented tools to conquer nature, we invented ** to conquer ourselves, people's thinking became sluggish, people's limbs became weak, and people were eventually killed by themselves.

This is not a problem at all, it is only a matter of time before everything tangible is destroyed. So how long it will take for human beings to be destroyed is the point of discussion, I feel that in fact, there will be about another thousand years or so, human development is too fast, the population is not controlled, we may survive another thousand years, but what about the next one? It's so hard to say.

Yes, the earth's resources are constantly being consumed, and sooner or later they will be exhausted, and scientists predict that sooner or later humanity will end itself.

When the water is full, it overflows, and the extremes of things must be reversed, and human beings will inevitably perish when they reach a certain extent.

Yes, as society continues to evolve and the air quality gets worse and worse, more and more scientists are trying to find out if there is another planet suitable for human life, but it is still unknown territory.

Some of you who often pay attention to creatures in nature know that in nature, every species is natural selection, and the survival of the fittest. If they do not have enough viability to survive in the wild, it can even lead to extinction. So have you ever wondered if humanity will become extinct?

If humanity were to perish, would it not happen again?

If humanity goes extinct, it must be caused by some disaster on EarthWhat humanity depends on for survival is lost, so it can't survive anymore. Therefore, it depends on whether human beings will reappear, and whether the factors that led to the extinction of human beings will always exist, and if the earth is restored to its original state, then after thousands of years, human beings can still reappear on the earth. If humanity dies one day, it only means that something has happened that prevents humanity from continuing to live.

What people live by, that isFresh air to breathe every day, and clean water。If the earth lacks these, then humans can no longer exist on the planet. Therefore, to see whether human beings can reappear in thousands of years, it depends on whether these things will reappear on the earth, and if the earth does not even have the conditions for human survival, then people will not reappear on the earth.

If humanity goes extinct, then there will definitely be other creatures on Earth. It would not be said that there is no life on this earth. So if the earth's environment improves in a few thousand years, maybe it will beNew civilizations will evolve on the planet, just like the humans before it.

Because although human beings are extinct, our genes will be stored in this vast land, and we will have a long survival record, just like the dinosaurs in the past.

But what I have to say is that time is limited, and the opportunities given by nature to human beings are also limited, and the earth will not give all living beings countless opportunities to change themselves.

It should not appear again, because after the extinction of human beings, there will be no more life on the earth, and some other creatures may appear.

It may continue to appear, because our human race may have perished before, but he continues to appear. Therefore, I believe that our human civilization will not perish.

It may not happen again, but I don't think it's going to happen, so we shouldn't speculate.

The future demise of mankind may also be caused by human beings themselves: future intelligent machines.

Second: the pollution of the earth.

Third: Planet Collision.

Fourth: viral diseases.

Fifth: war.

Sixth: Form invasion.

Humans create self-aware robots like the Terminator, which are then exterminated by the robots.

It will be because of my death. God will cause landslides and cracks.

- Aliens may be able to get along with the human nucleus for a while.

The environment deteriorates, so that a few people can survive if they evolve into monsters - mass destruction**, the earth's crust will sink into the sea, human beings will become extinct, monsters will be infected by radiation——— artificial intelligence will definitely make all creatures extinct.

+ The earth is so small, backward, so disunited. When will we enter the future of the universe? Can you only wait for foreign creatures to teleport to the earth? It's like human beings see new varieties, new foods, new ways of eating.

Mental degradation, there will be no humans on the earth in a million years, orangutans or monkeys are a substitute for humans (provided that there is no mega-catastrophe), there were intelligent beings millions of years ago, and humans at that time were apes. How did they disappear and no one knows, who are they? No one knows.

Now there are objects they created millions of years ago, but will we keep things for that long? Even if a nuclear disaster occurs now, everything will return to normal by then.