Abnormal crossing

Chapter 73 Top Civilizations from Ancient to Modern Times (Please subscribe and give me a monthly ticket!!!)

Gu Wei glanced at Jin with some surprise.

Nope.
Since the birth of the entire universe, only three civilizations have ever reached the height of the sea of stars?

This is indeed much lower than he expected.

By the way, I don’t know how the so-called same height is defined?
As if seeing Gu Wei's confusion, Jin took the initiative to explain: "The height of civilization has always been a very controversial topic, especially in the early days of Xinghai civilization. Many scholars even had faction-scale discussions on its specific definition."

"At that time, some factions advocated using the total power of a civilization as the definition of its level, while some factions advocated using the territory of a civilization as the dividing line. In general, they each have their own reasons, but they also have their own flaws."

Gu Wei nodded in understanding.

Defining the level of development of a civilization by its total power was a similar theory that had been proposed on Earth before Gu Wei traveled through time.

It's called the Kardashev Scale of Civilization.

This index was first proposed by the Russian astronomer Nikolai Kardashev.

In the Kardashev Civilization Scale, he divided civilizations in the universe into three levels:

Type I civilization can use all the energy on its parent planet.

A Type II civilization can collect energy from an entire star system, which for Earth means complete control of the sun's output.

Type III civilizations can harness the energy of the entire galaxy.

The power of a Type I civilization on Earth, calculated based on the Earth's input energy, needs to reach 1.74E17 watts, or 174000000000000000 watts.

Later, an American physicist named Carl Sagan summarized a formula based on this number:
K = log(10 × P-6/10.

In this formula system, everything is based on power, and a specific civilization index is output based on the results.

Generally speaking.

A civilization that controls 1 million stars has a Kardashev civilization index of about 2.8.

A civilization that controls 10 billion stars has a Kardashev civilization index of about 2.9.

A civilization that controls 100 billion stars would have a Kardashev civilization index of about 3.

As for the Earth, it is currently 0.7.

However, this index directly jumped to cosmic civilization after galactic civilization, which is the level of fully utilizing cosmic resources, so it has obvious limitations.

Before Gu Wei traveled through time, it was even supplemented to the seventh level through pure concepts rather than mathematical means, and the definition was [unimaginable and incomprehensible to humans].

This kind of definition of playing is basically on the same level as Cthulhu. Not to mention the physics community, many well-known science fiction writers at home and abroad think this is hooliganism.

The same is true for territorial divisions.

In ancient times, it was quite reliable to judge a civilization's strength by its territory. However, when a civilization develops to a certain level, the relationship between the size of the territory and its strength cannot be said to be completely decoupled, but at least it is not as close.

For example, Sun No. 3 next to the rabbits.

No matter how many jokes there are, with nuclear weapons in hand, there are only a few gangsters who dare to say they can suppress him on the battlefield.

This is the case even for industrial civilizations on planets, let alone the cosmic level. Therefore, whether it is power or territory, there is nothing wrong with using it to roughly summarize strength, but as a definition, its shortcomings will undoubtedly be obvious.

Then Jin paused and continued, "The controversy over the height of civilization lasted for about 50,000 to 60,000 years. This period is also known as the 'Great Debate of the Galaxy' in the history of civilization. It directly and indirectly gave birth to many philosophical schools."

"A large number of these schools of thought have been passed down to this day, but the debate ended more than 500,000 years ago - because the Xinghai civilization came into contact with a more advanced force."

"Higher power?" Gu Wei was slightly surprised, but soon understood what Jin meant: "Are you talking about the ancient tower space?"

"That's right," Jin waved his hand again, and the ancient tower model that Gu Wei was familiar with appeared on the projection: "After exploring the ancient tower, which is the unknown domain, the Xinghai civilization suddenly discovered a phenomenon - some very complex physical parameters remain around the entrance of the ancient tower. Both time and logic are incompatible with the Xinghai civilization, as if they were footprints."

"After analyzing these [footprints], scholars gradually determined one thing - any civilization that has stepped into that [tower] will leave these footprints at the intersection of space."

At this point, Jin snapped his fingers briskly: "In this way, the definition of top-level civilization becomes very simple. As long as a civilization has entered the ancient tower - whether horizontally or vertically, it can be considered an existence of the same level as the Xinghai civilization."

Only then did Gu Wei understand.

That's it
Just now he was curious about how Xinghai determined that there was no civilization of the same level or even stronger in other parts of the universe during this period. So the basis was here.
Then he touched his chin with some enlightenment: "So the Xinghai civilization has found a total of three pairs of footprints around that entrance. From this, it is confirmed that there have been three previous civilizations of the same level since the birth of the universe?"

"That's right," Jin nodded briskly, and the projection in front of him turned into two symbols that Gu Wei couldn't understand:
"The first two civilizations are called [Xuguang] and [Zhou], which are more than 47 million years old and 1.57 billion years old respectively. The level of Zhou civilization is higher, but Xuguang is not so good, and is much worse than Xinghai civilization."

Gu Wei's heart suddenly shuddered.

[Virtual Light] and [Zhou]?
More than 47 million years and 1.57 billion years?
Is it a coincidence?

The word "Zhou" has a very special meaning in ancient China. As a descendant of the Xia people, it is impossible for Gu Wei not to pay attention to it when he heard it against the backdrop of the starry sea.

There are still 47 million years left.

Gu Wei remembered clearly that the common frequency signal that caused him to travel through time came from 48 million years ago.
Unfortunately, this time refers to the Xuguang civilization and has nothing to do with Zhou.

Coupled with the randomness that exists on a cosmic scale, Gu Wei was only a little skeptical at this moment.

After all, it is a super giant like the sea of stars. The types of characters alone may be more than the population of the earth. The appearance of the character "Zhou" does not seem to be surprising.

Just like one of Gu Wei’s colleagues on Earth has a surname of Ji, you can’t say that he is the direct descendant of King Wu, right?

So Gu Wei could only keep this in mind and wait until he had time to learn more about the situation: "Jin, what about the earlier civilization?"

Whether it was Jin's previous sentence "the most powerful is also the most mysterious" or the order in which she introduced several civilizations, they all indicated the special nature of the third and earliest footprint.

“The earliest civilization.”

Hearing Gu Wei asking about this, Jin's eyes also showed a trace of confusion: "Unlike [Xu Guang] and [Zhou], the past of that civilization is extremely mysterious, and the clues left behind are too scarce."

"There are even quite a few scholars who believe that the civilization was simply an imaginary creation, and the so-called footprints are just statistical coincidences caused by the overlap of various physical phenomena."

"Because theoretically, if that civilization really existed, it would only exist for a very short time, 10^-66 seconds."

Speaking of it.

Jin paused and added:
“The first 10^-66 seconds of the universe.”

Note:
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(End of this chapter)