"The so-called closed-time-of-class curve supercomputing model is a hypothetical concept."

"There are several types, but no matter which type it is, it involves the concept of time, which is roughly divided into inverse spatiotemporal closed time-like curves and infinite space-time closed time-like curves."

Lu Yuanming looked at the book in his hand very hard, and at the same time he kept looking up at the blackboard, where there were also experts who were quickly writing formulas, explaining all this to him while writing.

“…… In the previous lesson, we talked about the limits of computing, and any physical calculation will have a limit value, which is the Bremmerman limit. ”

"In the material universe, because the speed of light is a limit, and the following conclusions can be drawn through the mass-energy equation, under the finite scale and mass of the universe, the information processing limit of matter is the Bremmerman limit, which is the limit calculation number that can be achieved at a given time, and it is impossible to exceed, otherwise it will cause matter to collapse into a black hole, and the information capacity will also comply with the Beckstein upper limit, which is the limit of the computing field, of course, our current technology is still far from such a limit value."

"Is there any computational model that can surpass the Bremmerman limit and the Beckstein upper limit? The answer is yes, and there are many of them...... Decision-makers, you may refer to faster-than-light navigation and information transfer. ”

Lu Yuanming nodded slightly.

The speed of light is unsurpassable, the closer a matter with a stationary mass is to the speed of light, the closer its mass is to infinity, theoretically and computationally speaking, a matter with a resting mass can never reach the speed of light, because all the mass energy of the entire material universe can not reach this number, infinite ∞.

The same is true for the quantum basis of computation and information, and the Bremmerman limit is the limit of the computational magnitude similar to the speed of light to speed.

But that doesn't mean there isn't faster-than-light travel in the universe.

Curvature navigation is one of the faster-than-light navigation, and among the faster-than-light navigation means that Lu Yuanming now knows, wormholes, space gates, space-time transitions, etc. are all faster-than-light navigation.

This is actually a way to bypass the impossibility of bringing stationary mass matter to the speed of light, so that matter can exceed the speed of light.

Obviously, the so-called Bremerman limit of the computational limit and the Beckstein upper limit of the information limit can also be bypassed in some way.

The expert saw that Lu Yuanming nodded in approval, and he continued: "Putting aside other methods for the time being, here we mainly talk about the closed time-like curve supercomputing model, which is a way to cross the Bremmerman limit and the Beckstein upper limit through the time level. ”

"The inverse spatio-temporal closed time-like curve calculation model is a kind of computational model of the causal level of time with inverse causality as a cause, and there is an interesting logical concept here, that is, the complete works of Shakespeare's literature, a person in the future collects the complete works of Shakespeare's literature, and then gives them to Shakespeare, who has not yet written these stories, then the question arises...... Where did the complete works of Shakespeare's literature come from? ”

"The computational model is to directly obtain the effect through the reverse time curve, and then the universe will repay the cause, that is, in order to make the logic conform and the cause and effect balance, the world must give the cause that the effect is consistent with, so the conceptual significance of the inverse space-time type closed time-like curve calculation model lies in this, no matter how large the number of calculations can directly point to the 'effect'."

Lu Yuanming looked at the blackboard carefully, and only after half a ring did he nod and said, "Although it is incredible, I can understand this logical concept, please continue." ”

The expert breathed a sigh of relief, and he continued: "Although there are many variants of the inverse spatiotemporal closed time-like curve calculation model, the general concept is like this, so let's explain the second type, that is, the infinite spatio-temporal closed time-like curve. ”

"This type of model involves a concept, the Malament-Hogarth concept of space-time in general relativity."

The expert began to write a lot of formulas on the blackboard, and also drew graphics, but at this point, Lu Yuanming was a little incomprehensible.

The expert still dutifully explained to Lu Yuanming: "This is a space-time model that is allowed to exist conceptually in general relativity, in which a compact set is considered at this point, and the ...... is selected at the same time."

Lu Yuanming's eyes widened and he looked carefully, and then his mind became more and more divergent, and he even began to think about what to eat at noon for a while......

"Smack!"

Lu Yuanming slapped himself, which frightened the expert and immediately stopped and looked at him uneasily.

"Sir, please continue." Lu Yuanming said seriously.

But ......

It's just other things, Lu Yuanming is not afraid of all challenges and difficulties, to put it mildly, there is nothing that people can't do when they are forced to be in a hurry, except for ...... Math problems.

But fortunately, this expert is indeed a very capable professor in the field of education, and when he found that Lu Yuanming's eyeballs were about to turn into a spiral, he immediately changed his teaching method, and no longer mentioned specific numbers and graphic coordinates, but explained all this by analogy.

"Your Excellency the Decider, you can think of this as a special world in the concept of time and space, in which time and space are quantifiable resources or data, similar to ...... Similar to air and oxygen! Your Excellency the decision-maker should know that the higher the plateau, the less oxygen there is, the lower the air pressure, and vice versa, right? The expert explained.

Lu Yuanming returned to normal at this time, and he nodded immediately.

The expert smiled and said: "You can also understand the space-time model, this coordinate graph can be seen as a plateau and a trough, the more plateau, the less time, the more trough, the more time, uh, how much time here, you can think of it as mobility, that is, where there is less time, time flies slowly, where there is more time, time flies fast, for example, a second in the plateau area is a second, and in the trough area, our second there may be a year, ten years, a hundred years, a thousand years, ......."

The expert racked his brains and thought, and then he suddenly realized: "It's similar to the heavenly court in Eastern mythology!" Yes, one day in heaven and one year on earth is similar to this concept! ”

Lu Yuanming was also stunned, he sighed and said, "Mr. said it very well, I probably understand the meaning of this concept of time and space." ”

The expert wiped the sweat from his head, and he continued: "This space-time model is a concept, so you can move closer to the limit value, that is, the lower the trough, the faster the time flows, the more time, then this trough is closer to the limit value, and when this point is reached, time will theoretically be close to infinity, that is, one second at the high ground, and there is infinite time inside." ”

"And then we put a special computer into that point, and then we put a massive number of computational problems into the computer, such as ...... Well, directly calculating the truth of the universe or something, theoretically speaking, the amount of calculation is infinite, but because the time at this point is also infinite, so we can see on the high ground that one second passes, and the answer that theoretically requires an infinite amount of computing information and an infinite amount of time to get is given within a second, because the computer has actually experienced infinite time! ”

"This is the second largest class in the calculation model of closed time-like curves, infinite space-time closed time-like curves."

Lu Yuanming thought about something carefully, and after a while, he nodded silently, thanked the expert and sent him away.

By this time, Lu Yuanming had thoroughly understood Zhuge Village's suggestion.

First of all, a black hole is an extreme curvature of space-time, and there is a boundary called the event horizon, and once it crosses the horizon, it is an absolute boundary wall that even the speed of light cannot escape.

The extreme curvature of space-time leads to the fact that the closer you get to the black hole horizon, the stronger the pendulum effect, that is, the slower the so-called time passes.

From the theoretical value of the theory of relativity, once a person enters the horizon, the time flow rate of the external universe will tend to be infinitely fast, that is, one second in the horizon, the external material universe is likely to have entered the heat death.

Of course, this is a theoretical calculation number, and the black hole itself is an unsolved mystery, and all the physical laws in it are outside the limit, which is beyond the current scientific and technological exploration and calculation of human beings, which is also the core contradiction intersection of relativity and quantum mechanics.

But one thing is for sure, the closer you get to the black hole, the stronger the pendulum effect, the slower the time you experience, and when you feel like a day has passed near the black hole, it may be decades, hundreds, thousands of years in the outside world.

And this is what Zhuge Village called the anti-closed time-like curve supercomputing model plan!

This must refer to the infinite space-time type closed time-like curve, that is, standing in a place where the flow of time is slow, through the pendulum effect of time acceleration, so that a super-magnitude calculation problem can quickly obtain results.

And Zhuge Village's plan is that Lu Yuanming will take all human beings into the moon, and then fly to the edge of the black hole through the speed of near light, and fly around the horizon for flight, the moon and all human beings will only feel that a day or a few days have passed, but the outside time has actually been vicissitudes, and it may have been tens of millions of years.

"But there is a fatal problem here, that is, our existing human technology is not enough to measure the black hole and the environmental data near the event horizon, and we can't even confirm the laws of physics, to put it simply, we don't know the pendulum effect number somewhere, and we don't know the specific distribution location of the event horizon, so this rush to the black hole is like a blind man rushing into a minefield, all by luck." Zhuge Village explained.

This is actually the reason why Tang Zhe'an didn't think about rushing to the black hole.

Humans can't dance outside the horizon of a black hole!

This is no longer a minefield, this is directly like walking in the death zone of the meat grinder battlefield!

Even if Lu Yuanming can make the moon travel at nearly the speed of light, and this kind of navigation is completely without vector change, it can be determined that the strong gravitational change of the black hole can be isolated during the voyage, and if it rushes directly to the black hole, the biggest possibility is that the moon disappears in the event horizon.

"That's why we need a lot of computing power! This computing power has exceeded the imagination of our existing human technology, and we cannot achieve the acquisition of this computing power, so ......"

"That's why the five million, the million, the one and a half million people died."

"We build countless computers in the outside world, and then the outside world time tends to be infinite, we may only be a few seconds, the outside world is a few years and decades, so many computers, so much time to calculate, we can get forward data in a black hole!"

This is the ...... See you again in the future! ”