Wang Ke is not talking nonsense, he really understands.

There are several forms of Chinese characters, among which hieroglyphs are a large part, and if you communicate with different civilizations, there must always be a medium, which is what they call a reference.

For example, the Chinese character for the mountain, which is a hieroglyph, draws the appearance of the mountain, no matter what civilization, can be understood, and on other planets, as long as it is not a gaseous planet, there must also be mountains.

English is different, it is composed of letters, there is no medium, and of course it is difficult to translate and communicate.

From this point of view, pictographs may be the universal font of the universe.

"We have seen the objects you are carrying, Li Yu said, call the mobile phone, the communication equipment that you can hold in your hand."

Hai Ling said to Wang Ke at this time: "The structure is very simple and rough, and our communication tools are much more advanced. ”

Wang Ke can understand that they must also have communication equipment, since they are more developed than the civilization of the earth, their communication equipment must be more advanced.

"If it weren't for the two people who came to Blue Star in front of us, we would have some understanding, and we must have thought that you were human beings hundreds of years ago, and through a certain node, you came to the universe in the present continuous tense."

Shi Hong frowned slightly, and seemed to sigh lightly: "But your arrival has completely overturned our speculation, you know a lot, we have no reason to doubt the accuracy of your measurement, in other words, we are not the universe in the current continuous tense." ”

Wang Ke knew that his guess was right, the universe was simply amazing!

Their blue star, the earth when they came, was around 2.5 billion years after its formation, and it had such a high level of civilization, and it must have been destroyed, and it had been destroyed for a long, long time.

At present, I am in the world of this blue star.

So, is the earth where I came here the universe in the present continuous tense?

According to their theory, maybe the earth is also a node in the development process.

Now is not the time to discuss these issues, the important thing is that the four of them accidentally passed the critical point and came to the Blue Star World two billion years ago, if they can't go back, then they will definitely be destroyed together with the Blue Star civilization two billion years ago!

"Can't we go back?" Wang Ke blurted out.

"The question······ It's hard to be sure. ”

Shi Hong thought for a while and said: "With the development of science and technology, the future is possible, and we are also committed to finding the anomalies of parallel universes, and there are breakthroughs, but ······ It's hard to say right now. ”

It was clear that he had something left unspoken.

Wang Ke was even more anxious, but it was useless to ask, Li Yu didn't go back, proving that they hadn't found the critical point of the parallel universe yet, and the four of them and Li Yu were destined to be destroyed here!

Suddenly, an idea popped up in Wang Ke's mind, if they found a critical point, at that time, the Blue Star people would come to the Earth in the relative present continuous tense, what would be the result?

I don't know much about the Blue Star people, if it is good, then the earth's science and technology will advance by leaps and bounds, qualitative changes, if it is malicious, then the earth will be fully occupied by the Blue Star people, and the earthlings will all become slaves?

Wang Ke felt that he couldn't dwell on the question of whether he could go back at the moment, but needed to know more about the Blue Star people: "How far has your technology developed?" Why is it that every day is approaching destruction? ”

"It's hard to say how far we have developed, we have to have a reference, or compare it with another civilization."

Shi Hong thought for a while and said, "I don't know what your understanding of the universe is, but as far as we know, this is an infinite loop of two-hole universes. ”

"Huh?"

Wang Ke exclaimed, this is a theory that he has never heard of: "The universe we know is ······ for the time being. Limited to the ability to observe, it is infinite, we call it the observable universe, what is the infinite loop of the two-hole universe? ”

"Infinite?"

Shi Hong was slightly stunned: "I can't deny your statement, can you tell me what you use as a unit of measurement, and how big is the specific observation range?" ”

"We measure it in light years, one light year, which is the distance that light travels in a year."

Wang Ke felt that there was nothing that could not be said: "We are calculated in terms of kilometers, and the distance of one light year is equivalent to 9,460 billion kilometers, and the observable range of the universe is about 93 billion light years in diameter. ”

"We learned from Li Yu that your one meter is equivalent to about half a step of an adult."

Shi Hong shook his head and said: "The universe you have observed is very different from the universe we have understood, according to your unit of measurement, the ultimate white hole is 300 billion light-years away from us, and the ultimate black hole is more than 500 billion light-years away from us!" ”

Wang Ke was stunned!

He said that one meter is about half a step for adults, and Wang Ke can understand that their bodies are so tall, and half a step is roughly one meter.

Since he understands the earth's unit of measurement, then he should not be wrong about 300 billion light-years and 500 billion light-years, their civilization is obviously much higher than that of the earth's civilization.

The rapid development of the earth's civilization to this day has only observed a small part of the universe.

But the two-hole universe has never heard of it, and this is the ultimate white hole and the ultimate black hole, what is it?

"The ultimate white hole and the ultimate black hole I am talking about are also what we have observed, and they may not be the real origin of the universe."

Shi Hong seemed to understand Wang Ke's doubts: "At the end of the universe, that is, the farthest distance we can observe, is an erupting white hole, spewing out all the matter in the universe, under the force of the explosion, being thrown out of the white hole, and under the interaction, gradually forming a sea of energy. ”

Wang Ke has heard of the word Nenghai, which roughly means that the nebulae, star clusters and other things in the universe are originally erupted from white holes!

"The ultimate black hole is farther away from our Blue Star, your Earth."

Shi Hong continued: "But it has a huge attraction, the closer it gets, the greater the gravitational pull it will experience, and all the matter in the universe will eventually be swallowed by it, and the blue star will not escape the fate of being swallowed up in the end!" ”

"Huh?"

Wang Ke was taken aback, and suddenly remembered something, as if he could get an explanation from him, and hurriedly asked: "If what you said is true, then Doppler redshift and Hubble's theorem have been explained!" ”

Hai Ling looked at Wang Ke and asked, "What do Doppler redshifts and Hubble's theorem mean?" ”

"Roughly speaking, the stars are constantly moving with each other, and the farther away the stars from us are from us, the faster they can move away from us!"

Wang Ke then remembered that there were many things that they couldn't know, and they really couldn't explain it clearly for a while, so they could only say it simply, looking forward to their answer.