When Alice and Bivis heard Chen Jian's words, they looked at Chen Jian with gratitude at the same time, because Chen Jian's words were actually for the fat old man to hear.

Or it can be understood that Chen Jian is using his personality to guarantee Constantine and Randolph, that is, the Norton family and the Rose family.

These wings were designed by two families to attract birds into the trap and then cut them down and sent them over.

At this time, the UFO that was monitored was basically tracked by birdmen. The radar detection further confirmed that this UFO has the ability to move instantly in the air. This ability, in terms of current technology, is already an invincible existence.

Even Chen Jian’s combat power, or strength, at this point, could not compete with the birdman who could move instantly.

Faced with the ability of instant movement, Chen Jian and the others could only be beaten passively.

The fat old man also knew what Chen Jian meant. He smiled, waved his hand and said, "No need to explain too much. Since he chose to cooperate with the Norton family and the Screw family, he should trust them. What's more, if this birdman used this ability to move instantly in front of them, how could he be caught by them? Not to mention cutting off such pairs of wings and sending them over?"

After a pause, the fat old man continued, "What's more, the male birdman appeared and rescued the female birdman whose wings were cut off. Although there were factors that were worried about safety, it could not only restrain people, but also move instantly. Why didn't he kill all the people in both families? This shows that he still couldn't do this!"

Hearing the fat old man’s analysis, Chen Jian and the others nodded silently.

The fat old man continued: "You have fought with this birdman before. The birdman has never used this ability to move instantly. The two families have set up traps and have captured a female birdman alive. This ability to move instantly, it is okay to escape, right? But they still caught it alive, right? Even if they escaped in the end, it was because of the rescue of the male birdman! One instant movement, a distance of ten kilometers, this ability is already in front of you. Even if it can be used, I think there must be restrictions!"

The fat old man’s analysis is relatively reliable. Chen Jian and the others nodded, expressing their agreement with the fat old man’s point of view.

"Besides, it's not entirely certain now. The bird man appears. It's just that according to the current situation, the possibility is relatively high!" The fat old man continued: "It's not the first time that UFOs have been monitored!"

"Is there really an alien? There are UFOs?" Chen Jian asked in surprise.

The fat old man smiled and said, "What are you thinking about! UFOs, literally mean unclear flying objects, are not actually like this. They refer to a phenomenon. They are precisely called UFO phenomena, which can be roughly divided into four categories!"

"What four categories?" Yang Wanming asked curiously.

"The first type is a misunderstanding of known phenomena!" said the fat old man: "For example, the rockets we launched, even supersonic aircraft, etc., will cause some phenomena to appear when flying at extreme speeds. When we are on the ground, we shoot them, weather conditions, shooting angles and other factors may make the shooting result look like a phenomenon that we cannot explain, that is, what Chen Jian said just now is suspected to be an alien aircraft!"

After a pause, the fat old man said again: "This type of thing accounts for a considerable proportion. Judging from the current situation of UFOs being discovered, it accounts for more than 90%!"

When Chen Jian and the others heard the fat old man's words, they all nodded silently. Now there are many videos, photos, etc. of UFOs posted, which have been confirmed to be the case, because there are specific facts as evidence, such as supersonic aircraft flying at the extreme speed, which appears at the shooting location during the shooting time period. Combined with other investigations, the truth can be easily revealed.

There are also some people who make fakes. Some of them are for the sake of sensationalism, while others are for the sake of profit. There are also many fake videos or pictures.

"The second type is an unknown natural phenomenon!" The fat old man continued: "There are many situations in this type. When some specific airflow, temperature, air pressure and other conditions meet the conditions, some difficult-to-explain phenomena will occur. This type can be simulated by building a data model, and then compared with small experiments, and the truth can be easily drawn!"

"The third category refers to unknown natural creatures!" said the fat old man: "The so-called unknown natural creatures refer to flying creatures. The bird people we are currently discussing belong to this category. There has never been a real discovery in this category. We only have one or two suspected cases, and it has not been confirmed yet!"

The fat old man said three categories in a row, and there was no such thing as the aliens that Chen Jian asked. At this time, only the fourth category was left. Chen Jian couldn't help but ask: "Is the fourth category the one I just asked?"

"That's right!" The fat old man nodded and said, "The fourth category refers to aircraft with obvious intelligent flying capabilities but not made by Earthlings. This is the general definition. According to our ordinary people's understanding, it has become a flying saucer and other words! So far, this category has not been found in fact. It is similar to the third category. There are unexplained UFO phenomena in all countries. They are working hard to study and try to find out the truth about the UFO phenomenon!"

"So that's it!" Chen Jian nodded silently, showing a sudden enlightenment. Judging from the fat old man's explanation, UFOs are flying saucers in the eyes of ordinary people, but in the eyes of research scholars, it is a phenomenon. Most of this phenomenon can be found out. There are only a few cases where the truth is not found out, and they are still being studied continuously.

"Spheric lightning, aurora, fantasy sun, fantasy moon and other natural phenomena may be mistaken for UFOs." The fat old man said: "This is the second type, and there are also human illusions, such as residual images in the human eyes, eye defects, illusions of aircraft reflections in ocean lakes, etc., which may also cause misunderstandings, as well as optical factors, photo artifacts caused by defects in cameras' internal reflections and development, overlapping images caused by reflections from windows and glasses, etc.!

Is the radar so precise? There will also be misidentification. This kind of misidentification is called radar false targets: radar secondary waves, abnormal refraction, scattering, multiple refractions, such as reflections from the electrical and dense layers or reflections from high temperatures and high humidity areas, which may cause radar false targets!"
Chapter completed!