"Actually...... I'm not from this era, I'm from the future era. ”

Sitting on a bench sprinkled with cherry blossoms, Asahina Minoru carefully observed Ji Feng's expression with the corner of his eyes, and lowered his voice to tell him his unbelievable identity.

However, she was disappointed, or to her relief, Ji Feng did not react at all when he heard the news, as if he had known that this would be the case.

"Hmm...... Look、It seems that you should have been in contact with Asakura-san-Nagato-san, or maybe you are too...... In short, I am following the instructions of my 'superiors' to inform you of my identity at this point in time.

So I'll move on. ”

Seeing that Ji Feng was completely indifferent to her words, just looking at her eyes calmly, Shi Jiuru's heart began to panic, but she still suppressed this apprehensive mood, and let herself continue as calmly and clearly as possible:

"I can't tell you when or what plane of time I came from, even if I wanted to.

It is absolutely forbidden to convey information about the future to people in the past, so before taking the time plane, people in the future must accept strong mental cues, and as long as they intend to say things that should not be said, the corresponding memory block will be locked. ”

In the original work, Shikuru seems to have said the same thing to Ah Xu, but Ah Xu doesn't react after hearing it - or his mortal head can only flash a reaction like "unconscious".

However, Ji Feng is different, after all, his mind is much smarter than Ah Xu, plus he has been pondering the future for a long time, and he specially asked the information integration mind body for some knowledge about time movement, so Shi Jiuru only said the beginning, and he immediately interrupted:

"Since you say 'which plane of time', then there is more than one plane of time in the future, right?

However, different things may happen at the same point in time at different time planes, or the same person may make different choices about the same thing in different time planes.

So, if these planes of time were to be given a more well-known name, they would be called 'parallel worlds', right? ”

"Ah...... Well, although there is actually a difference, but you can also think of it that way.

Although time is called the 'long river', unlike the flowing river, it is made up of discontinuous planes of time – like a frame-by-frame cartoon, except that the breaking space between the two adjacent planes tends to be close to zero.

If you've ever heard the term 'energy level', you should know that the possible states of electrons outside the nucleus are discontinuous, and electrons can only move in a few specific, discrete orbitals. The electrons in each orbital have discrete energies, and these energy values are called 'energy levels'.

In addition to moving in a certain orbital, the same electron can also make transitions between different orbitals. Electrons absorb more energy than a certain 'energy level' in order to be able to jump from a lower level to a higher energy level.

This is the same as jumping up the stairs, only if you have enough strength to jump up at once, if you don't have enough strength to jump halfway, you will still fall to the same place in the end, and it is impossible to stay in mid-air, waiting for the other half of your strength to jump up again.

In the same way, if an electron jumps from a higher energy level to a lower energy level and radiates a photon, the energy lost is also the energy of an entire 'energy level', and it is impossible to lose only the little energy that jumps down the stairs.

The minimum width of the 'energy level' may be the width of the gap in the plane of time, and the future theory of space-time is based on this theory of quantum physics. This should be considered a 'no-no' to the average person, but I can tell you that you have learned the basic theory of time movement through some means. ”

Perhaps because Ji Feng had already learned deeply about the theory of time movement from the Information Integration Mind Body, Shi Jiuru actually told him many scientific explanations that Ah Xu had not told Ah Xu in the original work, and Ah Xu was almost impossible to understand.

However, such a superficial and common-sense knowledge of quantum physics is as simple as a child's understanding that one plus one equals two for Ji Feng, and he only thought about it for a few minutes, and then confirmed the theory of Shi Jiu Ru and the theory of information integration and thought body, and confirmed the correctness of Shi Jiu Ru, that is, the theory of time and space for future people.

In quantum physics, there is a famous experiment that even ordinary people are likely to have heard of, and that is the 'Schrödinger's cat' experiment. The conclusion of this ideal experiment is that until the box with the cat is opened, the cat in the box is in a superposition of 'dead and alive' until the box is opened for observation.

Of course, as an object in three-dimensional space, the state of the cat can only be one of dead and alive, but before the box is opened, what the box contains is not a cat in a three-dimensional space, but a cat in two three-dimensional spaces, and these two three-dimensional spaces are two parallel worlds where the cat dies and the cat lives.

In the same way, every microscopic particle that follows the rules of quantum physics is equivalent to a box containing Schrödinger's cat, the particle must exist in this box, but its motion is irregular, and the sum of the probabilities of its occurrence at each point in space is 1, and its wave function represents not the real trajectory of the particle, but a fluctuation of probability, which is the probability density of particles appearing everywhere in space.

Such a basic box contains countless parallel worlds, but the limit of these countless equal worlds has been limited - the edge of the box, that is, the limit distance of particle motion.

If a particle obtains an energy level from the outside world, or emits a photon of an energy level, it will break through the limit distance of motion and jump to a higher or lower energy orbit, which is equivalent to jumping from one box to another, and this other box is in countless parallel worlds.

And these small boxes with infinite possibilities can be combined to form a big box with infinite possibilities to the second power, and the universe composed of all elementary particles together, the total number of parallel worlds is equal to the product of the parallel worlds possessed by each elementary particle.

In fact, the number of parallel worlds is infinite - since we have not yet explored the end of the universe, which means that we have not even touched the edge of the box, so naturally we cannot determine the size of the box.

In the space-time theory of the integration of people and information in the future, the existence of "boxes" and the existence of infinite parallel worlds have been confirmed. The "main god" behind Ji Feng can also be regarded as a space-time machine that allows reincarnators to move between countless boxes, and the outside of the big box where the "main god" is located may be ...... It should be said that there must be an infinite number of large boxes, and together they constitute countless larger boxes.