Chapter 844 (2/2)

Jiang Chen noticed that many students had picked up their mobile phones and were videotaping happily.

However, he didn't care. What he was going to say today was originally to attract jade.

With that, he turned to pick up the marker and wrote four words on the whiteboard.

Where are they? 】

turning around, Jiang Chen put his marker on the table and looked at all of you.

”Where are they? I think all of you here are familiar with this question. Yes, it is the famous Fermi paradox. ”

”It is estimated that the number of stars in the observable universe is between the 22nd power of 10 and the 24th power of 10, while the amount of sand on earth is 5 * 10 particles to the 18th power.” After a pause, Jiang Chen laughed, then spread out his hand and said, ”in other words, every grain of sand on the earth can correspond to 10000 planets in the universe.””The universe is much bigger than our imagination and darker than we think it is.”

”This darkness does not come from aliens. All civilizations are humble and insignificant in the 13.8 billion year time scale. Perhaps the spark of civilization has sprouted on Mars at our door. It's just that it ran out of life billions or tens of billions of years ago, and a billion years ago, the earth was just a chaotic ocean, not even trilobites

”This is the so-called cosmic sieve. The probability of our meeting with extraterrestrial civilizations is very small, and the probability of discovering each other after meeting is extremely small. ”

”But we still have to make the assumption that if we meet extraterrestrial civilizations, we can just find each other and understand each other's existence. Then I can assert that the consequences of blind contact will be quite dangerous... ”

Understanding does not mean identification, and non identification will lead to conflict. This kind of identity is embodied in aesthetics, values, core values and so on. Just like the dead who take death as beauty, they can't accept each other with the living people who praise life.

Jiang Chen didn't expect his class to bring too much inspiration to these students. Many of his arguments were discussed by predecessors.

He just wanted to see how the students would react when he told the truth.

Through these students' reactions, we can at least roughly assess the consequences of publicizing the crisis facing the earth's civilization.

Class is coming to an end.

“…… If, I mean, there is a colonial ship from an extraterrestrial civilization on its way to earth. We don't know where it came from, and we're not sure if it's in good faith. If you're the decision maker of the earth's civilization, what kind of decision will you make when you get this information. ”

”This is your homework. I hope you can finish it carefully.”

Jiang Chen noticed that many students on the stage were quite interested in this assignment.

Obviously, no one will really take this inexplicable assignment seriously. After all, no matter from which point of view, this assignment is really too boring. They are not at that childish age. They will fantasize about space, the first contact between mankind and extraterrestrial civilization, and the unrealistic problems.

Maybe a job, a scholarship, or a professor's project can make them take it seriously.

Thinking of this, Jiang Chen can't help but smile and shake his head.

After sorting the books on the desk, he coughed gently and said to the students who were preparing to finish the class.

”Well, I know you're not interested in it, so I'll be straight.”

”I believe that those who often play with mobile phones and wear helmets will be familiar with the space colonization program of star ring trade. The study of extraterrestrial civilization is part of the space colonization program of star ring trade. You may find it very boring, but now I tell you, this subject has commercial value. The assignment I assigned is related to this topic. ”

Ten qualified papers will be selected and distributed. If you're interested, give me a paper. By the way, students who don't choose courses can also participate. The mailbox is on the whiteboard. I'm afraid of trouble, so I post my bank card account number in the mailbox and send it together... ”

Before he finished speaking, Jiang Chen noticed.

That pair of eyes, look at their own eyes suddenly different (to be continued. ）Mobile phone users please browse and read, better reading experience.

, the fastest update of the webnovel!