Chapter 81 Dark Universe

Now, the question is back to the explosion of the Earth.

If it is true that the Noah civilization destroyed the Earth because of various conspiracies, according to Rimbaud's logic, human civilization may have passed the Great Filter and is a rare civilization in the universe...

But what civilization destroyed the Earth? Obviously, the scientists present here cannot come up with any answer.

Regarding the explosion of the Earth, scientists have analyzed it for a long time, and they only know that it is likely that the Earth was destroyed by an alien civilization, not a natural phenomenon.

As for what civilization destroyed the Earth, we can only say that we don't know, and humans have never even seen a living alien civilization...

For a while, the whole venue fell silent, and everyone didn't know what to say for a while. People's understanding of the universe is really too little.

"Okay... everyone, let's not consider the issue of the earth exploding for now. Regarding the Great Filter theory, I will talk about the remaining few points." Heiger was the first to break the silence, "And these points, we humans have not yet crossed. If one of them is true, then this terrible Great Filter is still ahead of us..."

The optimist Rimbaud has finished his views, and it is the turn of the pessimists. Yu Yifeng is also waiting quietly.

"First, the difficulty of interstellar navigation technology is likely to exceed human imagination."

"For interstellar navigation, first of all, the spacecraft must be accelerated to the sub-light speed level, which requires a lot of energy. Controlled nuclear fusion technology is only the first step. Only controlled nuclear fusion technology can provide so much energy.

Secondly, the spacecraft itself requires a lot of new materials with excellent performance, and the long voyage time also requires large hibernation chamber technology, etc. Perhaps some of the technologies here are extremely difficult..."

"Because the various technologies of interstellar navigation are very difficult, all civilizations are trapped on their own planets. Just like us humans, we can never cross the solar system... This one, I think is a possibility of the Great Filter."

The silence was slightly broken, and the scientists discussed in a low voice. For humans, almost all interstellar travel technologies, including engines, materials, energy, etc., are not up to standard.

If science and technology have barriers, almost all civilizations are blocked by this barrier, then the possibility of interstellar travel will be greatly reduced.

"No, Professor Heiger, I have a different opinion!"

It was Dr. Rimbaud, who jumped out again: "In addition to sub-light-speed spacecraft, different civilizations can also send electromagnetic waves, or send unmanned probes and other means. These things will not disappear in the universe for hundreds of millions of years. Can't civilizations communicate in this way?"

"Why have we never discovered it? Can you explain it?"

Heiger thought for a while, gestured with his hand and said: "If you want to ask why people have not received alien electromagnetic waves? I think it has something to do with the nature of electromagnetic waves."

"No matter how powerful the source of the emission is, the intensity of the electromagnetic wave will decay with the distance, probably inversely proportional. Moreover, the universe is full of a lot of electromagnetic radiation, and alien electromagnetic waves are likely to be interfered with, so that human instruments cannot distinguish them.

I think our human civilization may have received electromagnetic wave greetings from alien civilizations, but because these electromagnetic waves are too messy or too weak, we missed these opportunities."

"After all, electromagnetic waves are still not suitable for long-distance transmission. Unless their electromagnetic wave transmission power is the same as that of a star, but this is impossible."

This explanation is relatively reasonable. Light is also a kind of electromagnetic wave. Even if it is a powerful star, it can only transmit as much as a star on the earth, not to mention the instruments with a power of only a few kilowatts. Even if the power of these instruments is amplified ten thousand times, they may not be able to receive it.

"Then, what about unmanned probes? How can we explain that unmanned probes will not weaken?" Lanbo asked unconvinced.

Hegel thought about it and said, "Unmanned probes like you mentioned have similar problems. They fly slowly and may take millions or even tens of millions of years to fly to another star."

"But the number of such unmanned probes launched by humans is too small. I haven't counted them specifically, but I think there are only a few hundred in total."

"After a million years of sailing time, these unmanned probes have long been out of power. They can only rely on inertia to drift in the universe. Maybe they collide with meteorites, or maybe they fall into an ordinary planet. All kinds of accidents are possible.

Even if it is very lucky and happens to pass by a planet with life, because it is a dead object without electricity , or it may be ignored as space junk or comet..."

"Therefore, each probe has only a very low probability of being captured by alien civilization, one in a billion or one in a hundred billion, or even less?"

"If all civilizations are like us humans, aimlessly launching hundreds of probes, then our Earth civilization really has only a very low probability of receiving these probes.

Of course, if they launch hundreds of millions of probes every year, there is a high probability that they can be discovered by humans. However, launching hundreds of millions of probes every year is almost impossible from an economic point of view."

"That's my explanation." Hegel said, looking at Rimbaud quietly.

Rampaud thought for a long time, finally sighed, and sat down heavily. For a while, he had nothing to refute. This statement should also be reasonable.

After hearing what Hegel said, Yu Yifeng felt a little suffocated.

If there are many civilizations that have evolved wisdom in the Milky Way, but because of the distance, they are trapped on their own planets and can never communicate with each other, it is too tragic and cruel...

The universe is really cruel...

Yu Yifeng suddenly thought of the dark space, the dim starlight representing human beings, which is really too small and too fragile...

The smallness of civilization compared to the vastness of the universe is really shocking and despairing. Fortunately, what Professor Hegel said is just a guess, not necessarily true.

When everyone was silent, Professor Heiger spoke again: "This is the first possibility I mentioned, the technological barrier. There is also a second possibility: destructive technology."

"The ocean of truth is endless, and we humans are like children picking up shells on the beach. For the sake of imagery, I divide the shells into three categories: 1. White shells represent technology that is beneficial to humans;

2. Red shells represent technology that may destroy humans;

3. Black shells represent technology with a high probability of destroying the world."

"Although we all want to pick up white shells, this process is random and completely uncontrollable. So far, most of the shells we humans have picked up are white, but we have also picked up red shells."

"This red The black shell is a nuclear weapon!

Nuclear bombs have the ability to destroy human civilization, but fortunately, we humans are relatively restrained and have not been completely destroyed. So, it is still just a red shell. "

"But what if we pick up a black shell? Facing this black shell, where will we humans go? Will we be destroyed?"

"Perhaps, most of the more developed intelligent civilizations have been destroyed by black shells. So, this is also a possibility of a big filter..."

Hegel's series of questions made Yu Yifeng a little creepy. Damn, the universe is too dangerous. It is really a crisis at every step. It is not an exaggeration to say that it is a mountain of swords and a sea of ​​fire. Even the protector of mankind-"technology" may backfire at any time!

But what Hegel said does not have any major logical flaws, it is reasonable...

So, what are black shells? Is it possible for humans to bypass them?

Some people speculate that it is a biochemical virus or bacteria, a disease that no one can escape. It could be a zombie virus, or a mutated HIV, etc. It sounds a bit fantastic, but it's possible.

Some people also speculate that it's artificial intelligence.

The danger of artificial intelligence is that it is completely uncontrollable and unpredictable. Many people believe that once the kind of artificial intelligence that can really think appears, it will bring a catastrophe to mankind, and they can destroy mankind in a matter of minutes.

Some people speculate that it's a nanorobot. A nanorobot that can replicate itself, if not restricted, will reproduce itself in the form of exponential growth. Then... they will consume the resources of the entire planet in a few days!