Video spoilers history, starting with the blitzkrieg on Poland

【The first sunlight-loving microorganism appeared on Earth.】

【Photosynthesis also emerged.】

[It’s just that the photosynthesis in ancient times is completely different from the photosynthesis today. ]

[Ancient photosynthesis is a very strange reaction process. ]

[The bacteria grow by absorbing the energy of the sun's infrared rays and complete photosynthesis, producing solid yellow sulfur and corrosive sulfuric acid.]

【These are byproducts of photosynthesis.】

[Obviously, both sulfur and sulfuric acid are poisonous.]

【But the Earth at that time was also a scene of purgatory. 】

[This amount of toxins as a byproduct of photosynthesis is not worth mentioning at all. ]

[Through the innovation of microbial gene exchange and step-by-step updates and iterations, a new type of green bacteria finally appeared on Earth.]

This green bacterium can absorb both red and blue light, which means it can absorb more energy from the sun than previous bacteria.

[And the new bacteria also developed a new way of responding. ]

[This reaction no longer relies on toxic sulfur.]

【Instead, it relies on non-toxic water that is readily available. 】

【This is a huge improvement compared to the past. 】

[This reaction process of absorbing sunlight for photosynthesis has continued for billions of years.]

[Plants that can be seen everywhere nowadays are still like this. 】

[However, seemingly perfect and advanced photosynthesis has a more dangerous byproduct than it once did.]

[Even more deadly than any sulfur ever produced! ]

【It can bring greater disaster to the earth's ecosystem. 】

[That byproduct is oxygen.]

【We all know that human survival depends on oxygen. If there is not enough oxygen, humans and animals will die of lack of oxygen.】

[Sometimes when you are sick and have difficulty breathing, you need special oxygen supply.]

【But one thing must be remembered. 】

【That is, oxygen is poisonous. 】

[Excessive oxygen is equivalent to being highly toxic! ]

Outside the sky.

Eastern Jin Dynasty.

Alchemist Ge Hong was a little surprised.

Because from Tianmu Ge Hong's previous experience, we learned that people are actually breathing oxygen.

But now, Tianmu says that oxygen is poisonous?

"Does that mean we humans are taking in chronic poison every day?"

"Can't this be done?"

"If oxygen is really poisonous, then wouldn't we humans be poisoned to death sooner or later?"

"Wait! It seems that we humans will indeed die sooner or later."

Ge Hong suddenly realized something.

Another incredible expression.

"Could it be that he was slowly poisoned to death because of the lack of oxygen?"

Ge Hong was shocked by the scientific knowledge provided by Tianmu.

He continued to look at the sky seriously.

[For modern, oxygen-loving organisms, excess oxygen is highly toxic.]

[This was even more true of the Earth in ancient times.]

[At that time, the oxygen content of the earth was relatively low, and the creatures on the entire planet were not adapted to free oxygen. ]

[In the early days of photosynthesis, the oceans soon saw the first victims of the crisis of oxidation.]

[Oxygen is extremely active. When it appears, it immediately combines with the ferrous hydroxide in the seawater, turning it into red rust.]

【It started to spread from the coastline where photosynthetic bacteria thrived.】

【Expanding all the way to the entire ocean! 】

[From the sky, the oceans of the Earth at that time turned blood red due to the increase of ferric oxide, just like the landscape of doomsday! ]

[The red sea of ​​rust is immersed in the seabed tens of millions of meters deep, forming a deep red iron-rich belt layer in the stratum. ]

【And in the shallow sea area. 】

[The microorganisms obtain energy from the outside world by absorbing sunlight. ]

[However, they have never been able to solve the problem of oxygen, a byproduct of photosynthesis. ] [As oxygen accumulated in the body, these new bacteria were suffocated by the waste gas produced by photosynthesis. ]

【They began to die in droves.】

[At this time in the shallow sea, the oxygen content has exceeded a critical point. ]

【The entire shallow area was oxidized.】

[Oxygen acts like poison gas, sweeping through large tracts of bacterial colonies.]

[Even those microorganisms that love sunlight were slaughtered by oxygen. ]

[Evidence of this slaughter is recorded in shale and silica-rich flint on the seafloor.]

[As more bacteria die, oxygen levels drop.]

[After decreasing to a certain level, bacterial microorganisms begin to rebound rapidly. ]

【Thereby producing more oxygen.】

[Once again, red iron oxide is deposited.]

[When the oxygen content continues to rise and reaches a certain value, these photosynthetic bacteria will be slaughtered by oxygen again.]

[This repetitive process continued for hundreds of millions of years.]

[At the geological level, red iron oxide and black silicate can be seen alternating and accumulating in bands.]

[This banded rock structure has a very high iron content. ]

[Now it can be seen on nearly every continent on Earth.]

……

Barrage:

I Kill Myself?

"So this is how the red ribbon pork belly stone came about."

"More oxygen, less oxygen."

《Everyone who has breathed oxygen has died.jpg.》

"For the organisms at that time, oxygen was extremely toxic."

"Life at that time was almost entirely anaerobic."

"In fact, all organisms on Earth are also being poisoned by oxygen, but aerobic organisms today have a higher resistance to oxygen, and oxygen has changed from being a highly toxic substance to a chronic poison."

"If there is no oxygen on Earth, there will be no higher intelligence!"

……

Ge Hong of the Eastern Jin Dynasty saw the process of repeated struggles, tempering and refinement of early life on ancient Earth.

I also enjoyed watching it.

“It’s a fascinating evolution.”

“Although they are just a group of tiny creatures, we can still see the tenacity and resilience of life.”

"I always feel that watching the sky curtain is much more interesting than being an official."

And the sky continues.

[After 2 million years, this group of early photosynthetic bacteria finally completed their evolution.]

[They begin to be able to withstand the oxygen they release and are not killed immediately by it.]

【After the life span is enhanced, more sunlight is absorbed and more oxygen is released. 】

[Thereby greatly extending their lifespan and increasing the population. ]

[Their control over their habitats has also been greatly enhanced.]

[The increase in oxygen depleted the iron in the ocean, and oxygen began to fill the entire ocean, spreading relentlessly from the seashore to the deepest part of the seabed.]

[Even follow the sea water into the deepest ancient underwater world. 】

[For those anaerobic organisms on the seabed, the flood of oxygen is catastrophic.]

[The microbial communities that once lived in the seafloor craters, in an environment that has remained unchanged for billions of years, are completely unable to compete with their ancient structures.]

[When oxygen begins to affect the deep sea, a large number of microorganisms are instantly poisoned to death.]

[Even if some microorganisms are not killed by the poison, they will find that the living environment they are accustomed to has been completely changed by oxygen.]

[The oxygen reacts with the iron, sulfur and manganese released from the crater.]

【Oxidize it.】

[The primitive microorganisms on the seabed either died from oxygen poisoning.]

[Or they will starve to death because the elements they inhale are synthesized by oxygen. ]

[And this is still just the beginning.] (End of this chapter)