Steel City.

Strum was intently watching how Little K operated a machine, completely unaware that the appearance of his pouting ass was quite indecent at this time. Little K sits in front of the table, taps the button with the letters with both hands, and then the machine turns the white paper into paper with ink printed on it.

"It's a typewriter." Little K stopped and explained: "Its function is to ensure that the text is beautiful, after all, although the people here are all very smart, but the draft is more difficult than the password, sometimes they want to organize their thoughts, and find that even they can't understand what has been written in the past." ”

"That's interesting, can I try it?"

Fermat scoffed from the side, "Could it be that you learned to use it after watching it for a few minutes?" ”

Strom ignored him and sat down in front of the typewriter, at first he used only two fingers, carefully tapping the keys, but the more he typed, the more flexible his fingers became, and in the end it was like ten fingers, who would dare to believe that this was the hand of a zombie? In a few minutes, he typed out the manuscript that was originally scheduled for Xiao K to do it for him. He reluctantly stood up and said, "However, the extent to which typewriters replace manpower is not obvious. ”

"Yes, there is also a machine called a photocopier, which can copy any number of manuscripts, as long as there are enough paper tubes."

"This is the liberation of manpower!"

At this point, Leibniz walked into the laboratory and said to Fermat and Strom: "Bring your stuff and go." So one sorted out the manuscript, the other packed up the props, and the two hurriedly followed the footsteps of the king. They are going to meet the owner of Lab 02: a madman who studies a time machine and wants to go back in time and kill his grandfather, Tim Masson. He wasn't for fun, but because he was molested by his grandfather when he was a child, which made him feel uncomfortable every time he thought about it.

Taim's subject is-

Can the past be changed?

Thankfully, there are finally topics that don't look like philosophy!

It's 8:04:30 a.m., and the three of them are waiting outside Lab 02.

Stram asked in a low voice, "Has he always been like this?" ”

"Well, Tym has a pathological obsession with punctuality." Leibniz picked up his pocket watch and walked with his eyes on the second hand.

"Even you want to accommodate him?"

Leibniz was silent.

At 8:05 a.m., Leibniz opened the door to the laboratory and heard a loud gargle in the corner. It was a small, bald man in crumpled pajamas, who reached under the faucet, scooped up a handful of water and wiped his face, and said indistinctly, "Morning, Leibniz." ”

"Morning, Tem."

The two looked curiously inside the lab. About a third of the space is used as a living area, with beds, tables and chairs, a bathroom with curtains drawn, and several puppets on standby. In addition, the most common are the clocks, which are hung side by side near the ceiling, each with a different time and the name of the time zone written underneath, such as "Snow Country", "Gospel", etc. The floor and walls are also very special, paved with ceramic tiles half a meter square, and the four corners of the brick surface are also written with numbers.

Taking the bread from the puppet's hand, Tim nibbled on it as he raised his chin at the two necromantic creatures. Leibniz sent a soul wavelength: "Take it out!" So the two of them hurried to present what had been prepared.

Taking the manuscript, Tim flipped through it a few times, threw the half-eaten bread (the puppet behind him quickly cleaned up), swallowed hard, and asked Strom, "You wrote this?" ”

Strom nodded vigorously.

"There are too many typos, don't read it, it's a waste of my time." Tim tossed the manuscript away.

If Strom's blood vessels were still functioning properly, he would be blushing at this point. Although he learned to use a typewriter, his carelessness did not change.

Then Tim took Fermat's props again (Fermat's hands were shaking) and looked at him suspiciously, "Is the size right?" ”

Leibniz immediately handed over a vernier caliper: "See for yourself." ”

After taking a measurement, Tim nodded in satisfaction and turned to walk to the lab table. On the table is a very special thing that can be grasped in one hand, and the shape is three metal bars interlaced at the midpoint, whether viewed from the front, from the side, from above, it is made of cross.

"This is the 'teleporter', and its three parts correspond to the X, Y, and Z axes. As we all know, the three-axis coordinate system can be located in the three-dimensional world, each object, each place has its own coordinate point, if I record the coordinate points of the Elven Court, when I teleport, it must be teleported to the Elven Court, not the Iron Rope Mountains. Then, time is a pseudo-dimension. I didn't make a part that represents the timeline, that doesn't make sense. ”

Fermat and Strom glanced at each other, and yes, they could tell from their eyes that the other party was beginning to understand each other.

This time, the duo brought a 3.0 version of the miniature power furnace "Newborn's Heart", and the original version was applied to the Arcane Puppet. If Tyme wants time travel, he needs a stable, durable energy source, but no matter how hard he tries, Steel City can't make a power plant that fits the size and meets the conditions, so Leibniz took the opportunity to recommend the Fermat duo. These days, Fermat borrowed Leibniz's laboratory to tinker with the miniature power furnace.

The "Heart of the Newborn" is a small, openwork metal ball the size of an eyeball, which contains a soul diamond. Embedded in the center of the Teleporter, Tame looked up at a floor tile one step away, then at the wall tiles at his own height, rolled the numbers on the device several times until it matched the coordinates he had intended, and pressed the switch.

Sou.

He disappeared from the spot, appeared in another place, and then took out the power furnace and threw it: "This test shows two things, first, the accuracy is within the acceptable range; Second, the motivation is not enough, which wastes my time. ”

Fermat picked up the prop in distress and shouted, "What are you doing! ”

"I don't mean to look down on you, I'm just stating the facts - oh my God, it's a waste of my time to explain to you." Tim sighed, "Look at your work, is it running out of energy?" The 'Teleporter' needs to open a wormhole that only allows one person to pass through, and it consumes more energy than you can imagine, and this is just a space transfer, so what about the time jump? Can the soul be used as an energy source? Leibniz did this before, and it ended in failure. Percival said with oil, no; The treasure bag said that it would not work to use the snake to compress energy, the density was too large, and its own weight was enough to crush the device. ”

"yes, if we can think of it, why can't more powerful people think of it......

"No, that's not right! There is also a kind of energy source that is both light and can provide energy for a long time! Fermat had an idea and shouted, "Yes, 'The Will of the Necromantic King'!" ”

As soon as he finished speaking, he was like falling into an ice cave, and quickly looked at Leibniz. I saw that Leibniz's face was really gloomy, and the [King's Majesty] spontaneously came out, and the two necromantic creatures involuntarily knelt down. Fermat almost didn't cry: the soul god is above, and he actually put forward such a rebellious idea in front of the king! Didn't His Majesty Leibniz think about it? If His Majesty had agreed, he would have proposed it to Tim a long time ago!

"I know that you made a momentary gaffe out of the spirit of scientific research, and did not intend to insult us, but you must remember that unless the king voluntarily sacrifices the 'will of the Necromantic King', or the spoils obtained by his own hands, any use or damage to it is a great crime." Leibniz relieved the coercion, but in a rather stern tone.

"Alright, alright, don't waste my time." Tyme came out to play the round, though the words were still just as harsh. "I ask you, do you think you can change the past?"

"It's hard to say...... The ultimate goal of changing the past is to change the future. If you kill your grandfather before he and grandmother know each other, your father will not be born, and you will not be born. This leads to a logical paradox, since you were never born, how can you grow up and invent a time machine to go back in time? ”

Fermat rolled his eyes at Strom's words. Paradox, well, philosophy again.

"So, if I kill my grandfather after I'm born, won't I have the best of both worlds?"

"Well, I guess that's going to change. If you were born without a grandfather in your childhood, and you would have lost the motive to kill him, you would not have been able to invent a time machine, and you would not have been able to go back in time and kill your grandfather. Let's be honest, it's because of your grandfather that you want to invent a time machine. ”

"Your view is based on the assumption that 'time flows forward', that 'cause' must precede 'effect', and that 'effect' must come after 'cause', and that the timeline is a ray that starts from 0 and extends to positive infinity, and no one can reverse it, so time travel is not valid. But what if, then, time itself is not fluid, it is not even an axis, but just bubbles of air large and small, or can it be understood as intervals? There is no relationship between cause and effect at all, and it seems to us that a single 'effect' can even be traced back to multiple 'causes'? ”

Strom was completely dumbfounded: "Can time still not flow?!" ”

Tim patted his head, "I knew it would be a waste of time to talk to you about this. I don't blame you, the academic community has not yet recognized this hypothesis. Let's talk about it, since cause and effect are certain, it seems that our fate has been determined a long time ago. Time travel doesn't exist? ”

"It's not right, although we can't change the past, we can change the future!" Fermat interjected.

When Tim heard this, he said to Leibniz, "Although the two of them have wasted my time, at least they can keep up with some of the ideas, and they are not useless. By the way, what do you think? Do you also believe that it is possible to travel in time? Otherwise, you wouldn't have allowed me to do this project all the time, would you? ”

Leibniz looked at Fermat and said, "I only trust my eyes." ”