There have been many Ice Ages in the history of the earth.

To be precise, there were five large ice ages. According to geologists, the shortest ones may last tens of millions of years, while the long ice age may span hundreds of millions of years.

Can you imagine it?

The whole world is surrounded by glaciers, and even the equator is filled with thick ice and snow. And such eras last not only for a few years, decades, or hundreds of years.

Instead, it lasts for tens of millions of years or even hundreds of millions of years.

It can be said responsibly that every ice age is a great filter and a reshuffle of life on Earth, destroying countless powerful species, just like the Mongolian army's expedition in the west, wherever they go, all men above the wheel will be killed.

The same is true for the biological world.

But how did these Ice Ages happen?

All current research results tend to be - I don't know how it happened.

Maybe the earth is in a bad mood and suddenly becomes cold. Once it gets cold, it becomes cold for tens of millions of years or hundreds of millions of years.

If the earth has life and consciousness, it can even be understood as the earth actively sterilizing itself.

It’s as easy and natural as a human being taking a hot shower and applying shower gel.

Scientists don’t know how the several ice eras on Earth were created, but now Lu Yuan and Su Mei seem to know how this happened.

After all, aren’t Lu Yuan and Su Mei and the others now in a freezing era?

However, unlike the previous Ice Age, the environment faced by humans this time is more dangerous and more fierce. The earth may have never faced such a cold weather since its birth, after all, the sun has never been extinguished.

When Lu Yuan thought of this, he suddenly felt that his mind exploded in an instant.

He looked at Su Mei: "What evidence do we have to prove that the sun has never been extinguished?"

When Su Mei heard this, she was stunned at the first time because even Su Mei could not understand Lu Yuan’s thoughts and intentions at the first time.

But it is not possible at the first time, but it is still possible at the second time.

Su Mei then showed a thoughtful and close to fear: "As far as I know, we have no evidence."

Yes, there is no evidence for humans.

There is no evidence that humans have ever quenched the sun.

Just like the Cambrian life explosion, in the 2 billion years after the earliest blue-green algae was born on Earth, the planet was silent, and only the lowest algae lived on this planet.

But in the Cambrian period, it was suddenly like someone putting a catalyst in the reaction vessel, and the Earth's biosphere, like stagnant water, exploded instantly.

Countless creatures began to emerge on the earth, and evolved and reproduced continuously.

You should know that the Cambrian period is only more than 600 million years away.

"Then there is no such possibility?" Lu Yuan looked at Su Mei and said: "The activity of the sun would have periodically weakened or even extinguished. Each weakening represents an ice age on the earth, thereby cleaning up most of the life on the earth and conducting a thorough reshuffle of the earth's order."

"And this time we humans are just part of the shuffle."

"It is just that because of the prosperity of human beings living on the earth this time, they have suffered a more thorough cleaning?"

Su Mei shook her head: "I don't know, this is just possible."

"But we have no way to explain the ice age on Earth." Lu Yuan looked at Su Mei and said, "We all know that on the eve of the sun's expiration, the earth is in a stage of being troubled by greenhouse gases and global warming."

“We are working to reduce carbon emissions and to counter the intensification of global warming.”

"But in fact, what humans should fear is never warming, but the world begins to become cold at some point."

"Under normal circumstances, as long as the energy the earth receives from the sun remains unchanged, the earth will always be in a relatively warm and humid climate."

"Under the protection of the atmosphere, we can reproduce, grow and hunt, and develop civilization without worrying about excessive heat loss. Or, under the temperature regulation of the ocean, the earth's temperature is moderate and remains in a relatively suitable range. This degree of regulation will not have undergone tremendous changes in the earth for hundreds of millions of years."

"But." Lu Yuan said softly, "But the earth is experiencing ice ages again and again, with the mass extinction of organisms again and again. The sun nurtured our civilization, but with the global cooling again and again, it destroyed the earth's statements."

"Can we make such an assumption?" Lu Yuan looked up at the sky, feeling a little tired: "We are creatures in the Petri dish and need to be cleaned again and again, and all our efforts are in vain?"

The pessimism that Lu Yuan, who was in a place that was irreplaceable and irresponsible, gathered in one place.

When the first time, when Lu Yuan had just crossed, he thought that humans would have to survive this time the sun was extinguished.

So he did not come tomorrow, and he led the promotion of nuclear fusion development, began to build a robot factory, and welcomed the return of the road from the future.

Although Lu Yuan and Su Mei were thrown to this time and space again at that moment, Lu Yuan still did not give up hope.

He took Su Mei, who was seriously ill, to find an antidote in Binhai City, tried to solve the Doomsday Mecha Legion, and rescued John Smith as his teammate. After following the previous distress signal, he came to this underground cave, found Roland and rescued him.

This was originally an end, but when he saw this bronze door in this underground cave, what he guessed almost defeated Lu Yuan's beliefs.

That is - if the Ice Age on Earth is a premeditated action to clear life on Earth again and again, this Ice Age is also to cleanse the earth and cleanse humans.

Just like the Cambrian creature explosion 600 million years ago, before that, the earth experienced a blank phase of nearly 2 billion years.

Can you think that in the past 2 billion years, the earth once had a wise civilization, but it was completely destroyed by the same natural disaster?

All of this is unknown and unbelievable.

Originally, what science emphasizes is bold assumptions and careful verification.

Then now Lu Yuan boldly assumes it, and the evidence is almost the same.

Just before all humans, the sun was extinguished, and the severe cold brought about destroying the entire earth's ecosystem.

And it also destroyed all living things on the earth.
Chapter completed!