Looking at the elevator that had just been blown into a pile of scrap iron, Xiao Zihan pursed his lips tightly, and after a long while, he spoke: "Officer Liang, do we have any other way to get to the inside of the starship?" ”

Officer Liang's face turned a little pale, and he stammered, "No...... Without. Pen @ fun @ pavilion wWw. ｂｉｑUｇE。 ｉｎｆｏ”

"Are there any helicopters around that can be requisitioned?"

"Yes, yes...... But it will take a little time. ”

"Hurry up and get the helicopter over." Xiao Zihan looked at the direction of the starship's bridge, his eyes were sharp: "Our time ...... Not much! ”

……

"The ...... of the universe The truth? Gu Fan chewed on this word with some doubts, and there were more doubts in his heart.

Ye Chang seemed to have finally broken free from the fear just now, and turned back into the physicist with an indifferent expression, he smiled at Gu Fan, and began to explain what he had just said: "I mentioned before that if we look at the conditions for the birth of life, there should be at least one hundred trillion intelligent civilizations in the universe, but until now, human beings have not even encountered any other intelligent civilization. ”

"Before me, there were countless scientists who wanted to figure out why and put forward countless hypotheses...... Like the Great Filter Hypothesis, the Dark Forest Hypothesis, ......"

"I have to admit that many of these hypotheses are quite convincing, but their loopholes are also obvious, and more and more hypotheses have been proven to be untenable as time goes by."

"Finally, a year ago, I created a theory that was closest to the truth, based on several hypotheses summarized by my predecessors, and perfectly explained the 'Fermi paradox'."

"This is the most proud thing in my life - the ceiling theory."

"Ceiling?" Gu Fan frowned and silently recited the name.

Ye Chang touched his jacket and took out a coin from his jacket pocket, he pinched the coin and threw it upwards with force.

Since the room in the main control room was not too high, the coin quickly touched the top of the room, and the coin was originally showing a vast starry sky above their heads, but when the coin touched the top, it caused a ripple of pixels, and then immediately bounced back to the ground.

Ye Chang didn't bend down to pick up the coin on the ground, but looked at Gu Fan quietly: "Officer Gu, have you seen it?" ”

"Although we seem to be in a cosmic vacuum at the moment, the glare phantom is the glare phantom, and no matter how vivid the appearance is, it still cannot change the truth of its essence."

"The main control room is a room made of matter, so it will have a ceiling, even if we can't see this ceiling by relying on technology, but existence is existence, if you jump high enough, you can touch this ceiling that seems to be a vast starry sky."

"Let's say there's a completely sealed house, and a human stays inside the house while an alien stands on the roof."

"The only way for humans to want to meet aliens is to break the ceiling of the house...... But the problem is that the human does not have enough advanced tools at his disposal to break this ceiling, and he can only be trapped in this small house forever...... If that's the case, then what's the point of even if there really are 10 billion extraterrestrial civilizations in the outside world? ”

"Wait...... You mean that the reason why we have not found any intelligent life other than human beings is because each intelligent civilization is separated from each other by what you call the ceiling? Gu Fan asked suspiciously, "It's like...... Like a small cage? ”

"No, Officer Gu, in the material world, nothing can hinder us." Ye Chang's voice was a little cold: "Although our current interstellar navigation technology is still very backward, the sailing speed is extremely slow...... But as long as there is speed, then it is only a matter of time before life is encountered. ”

"The ceiling that separates countless intelligent beings I am talking about is invisible......"

Speaking of this, Ye Yong tapped his head with his fingers: "That invisible ceiling is here." ”

"What do you mean?"

"The so-called 'invisible ceiling' is precisely the limitation of our thinking."

"What exactly are the limitations you mean?"

Ye Chang pursed his lips: "The theory of relativity and quantum mechanics are the two pillars of modern physics, and the theory of relativity clearly states that local objects cannot exceed the speed of light in a vacuum. This is now a self-evident truth. ”

"But if you think about it, is there really no faster-than-light in the universe?"

Gu Fan frowned tightly and retorted: "If the limitation you are talking about is just 'no object that can exceed the speed of light has been found today', then since you have put forward this hypothesis, doesn't it mean that you have broken this limitation of thinking?" ”

"Okay, now you're thinking, 'Even though faster-than-light hasn't been discovered yet, it's possible'. I'm just thinking like you've broken out of that mindset. ”

"Next question, what is one plus one?"

Gu Fan was stunned for a moment, always feeling that there was some trap in this question, and after thinking about it, he still replied honestly: "It's equal to...... Two bars. ”

Ye Chang nodded: "That's right, it's two." ”

"But have you ever wondered what if one plus one doesn't equal two?"

"One plus one equals two! What's there to think about here. ”

Ye Chang sighed, and the smile on the corner of his mouth looked a little bleak: "See?" This is the 'invisible ceiling'! ”

"One plus one equals two, is the common knowledge that every human who has studied mathematics knows, and if there is any doubt about the existence of faster than the speed of light, this inference is an irrefutable truth."

"When we calculate formulas, we hardly think about the absurd assumption that one plus one does not equal two."

"But what if, one plus one really doesn't equal two?"

"Yes, in our present material world, this is indeed irrefutable, but are you sure that in the higher dimensions, or in the pure spiritual realm, one plus one is still equal to two?"

Gu Fan opened his mouth, thought for a while, and said, "You are secretly changing the concept!" You can't prove the fallacy that one plus one equals two......"

"No, I can prove it!" Ye Chang said coldly.

He took a deep breath and said in a deep voice: "A hundred years ago, the usual means of transportation we used were cars fueled by gasoline. At that time, oil was one of the most important energy sources for industrial development. ”

"In 50 years, today's means of transportation, such as cars, trains, airplanes and even starships, have all been replaced by nuclear power plants...... Oil, as the 'blood of industry', has officially withdrawn from the stage of history......"

"Fifty years later, our main energy source today is still nuclear...... As for fundamental physics, in the course of these fifty years, ......"

"Actually! Not! Enter! Step! ”

Ye Chang's desperate voice echoed in the room of the main control room: "The speed of our scientific and technological development has been stagnant for a full fifty years!" ”