"This is just basic knowledge. You can learn it after a little self-study." Zhang Heng typed in the keywords as he spoke. At first, he used the combination of aliens and Cretaceous period, but all he got were roadside news.
For example, "The Shocking Truth: Dinosaurs Were Killed by Aliens!" However, this time, the Shock Department might have been lucky. After making up so many stories, they had finally come true. In addition, there was also "Evidence that Aliens Have Visited Earth Long Ago!" And "China Is the Ancestor of Aliens! Eleven Ironclad Proofs!" This kind of inexplicable thing made people have question marks on their heads.
So Zhang Heng recalled Lin Sisi's weekly diary again, changed the keyword combination, and used aliens, disaster, and stop to search. At the same time, to prevent someone from directly deleting the information from the database, he also set up a ladder to bypass the database. Although Google had withdrawn from the mainland, Google's crawlers were still tirelessly crawling information from Chinese websites, complementing Baidu Snapshot.
This time, he found some posts worth reading. Zhang Heng turned on two computers and spent ten minutes with Bai Qing to read all the posts. However, the only post that matched the content was a short horror science fiction story conceived by the author. The post was not deleted, but the author posted it online with great enthusiasm. There were only a few replies, and the few comments were mostly criticism.
[I don't think so.]
[You can't say that. Maybe the author himself was replaced by aliens. That's why the story is so bad.]
[It makes sense. Everything makes sense now.]
…
Bai Qing couldn't stand it anymore and replied.
[Actually, the idea is quite good. It will be better with some modifications. Come on!]
However, the original author seemed to have suffered a huge blow. The login time showed that it was three weeks ago, and he did not come to the forum after that.
However, Zhang Heng noticed the last comment. It was from a day ago, and the ID was Voyager 1. It was just a random sentence.
[Are you Fermi's Paradox? So the previous set was just used to write science fiction?]
Zhang Heng glanced at the ID and found that the other party was online.
So he sent a private message to the other party.
[Can you tell me more about Fermi's Paradox?]
Voyager 1 replied.
[Wait a minute.]
After about two minutes, he sent a second message.
— — Just now, the boss was walking around outside. I can't let him find out that I'm slacking off at work. If you want to know about the Fermi Paradox, can't you just go on Baidu?
— No, there's a science fiction article. Leave a comment below.
— — Oh oh oh, you're talking about that? You probably got the wrong person. That guy wasn't from this forum, but an ID from Douban's city-wide group. He was a very mysterious guy who only logged in from 5: 30 to 6: 00 every day. You would never see him before or after 5: 30 or 6: 00. He was as punctual as a robot.
Zhang Heng was speechless. If this ID really belonged to Lin Sisi, this situation probably happened because her parents restricted her online time. Many families with young children had similar rules. He did not expect this to make the Fermi Paradox extremely mysterious in the group.
Do you know her well?
Heng asked.
— Her? Is Fermi's Paradox a girl? Speaking of which, she didn't say whether she was a man or a woman. I don't know her very well. After all, her activity time happened to be when ordinary people got off work, and she was very serious. Sometimes, she would argue with you about a small problem until you surrendered or she went offline. She's pretty good, though. Some people even suspected that she was a teacher at a research institute or school.
— — Oh?
— — By the way, the group organized an offline stargazing event before. Fermi's Paradox asked a lot of questions, and she said that she and two friends would come, but later, she said that her family didn't agree to it. Yes, at that time, we speculated that she was a man and should be married. Her wife is strict with her.
Zhang Heng and Bai Qing exchanged glances. It seemed that they had found the right person this time. Zhang Heng continued to type.
— — What was that thing you mentioned before?
— — Oh, didn't "The Three-Body Problem" win an award last year? That's why the topic of communicating with aliens has been particularly popular recently. Then I remember about three weeks ago, Fermi's Paradox also posted a post saying that she had deciphered radio radiation from space.
— — Huh?
Voyager One was very patient. Of course, maybe because he had nothing better to do, he even explained.
— — The so-called radio radiation is actually a kind of electromagnetic radiation, but it can penetrate interstellar matter and bring information about galaxies at greater distances. Scientists use radio telescopes to observe and study radio waves. Previously, the world's largest radio telescope was in Puerto Rico. It was called the Arecibo Radio Telescope, and it had a diameter of 350 meters. This year, our country's 500-meter FAST Radio Telescope should be completed in the second half of the year. By then, it should be the world's largest radio telescope.
Voyager One said proudly.
— — I know what a radio telescope is.
Zhang Heng said.
— — In fact, I'm more interested in how Fermi's Paradox deciphered radio radiation.
— — Wait a minute.
The enthusiastic Voyager 1 immediately logged into Douban. Two minutes later, he exclaimed in surprise.
— — Why is that post gone?
— — What's the title?
Zhang Heng asked.
— — It's called "I Deciphered a Piece of Radio Radiation." Fermi's Paradox said that she discovered that a piece of radio radiation contained important information, but no one in the team believed it at the time. That was because radio radiation was generally emitted by celestial bodies, and it had no practical significance. Of course, its essence was electromagnetic radiation. In theory, it could be used to store information. However, it was hard to imagine that an alien could transform a pulsar into a radio transmitter or something like that. So, everyone thought she was joking at the time. This time, she did not refute it, and the matter passed.
Zhang Heng searched for the title of the post, but he found that the information downloaded by Baidu spiders and Google crawlers had been deleted as well. Zhang Heng remembered the guy who could edit the surveillance footage. Apparently, there were also computer experts among them.
"What should we do now?" Bai Qing asked. She felt terrible. She had found the right direction, and she was only one step away from the final answer. However, she was stuck at the last step.
Before Zhang Heng could say anything, he received another message from Voyager 1.
— — Well, it doesn't matter. If it's gone, it's gone. Anyway, I have learned her deciphering method. However, it seems that it only works on the piece of radio radiation she emitted. After that, I checked all the radio radiation records I could find on the Internet, and none of them had anything about her. No matter how I look at it, she must have made it up.
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