Thinking of this, the idea of upgrading, Su Cheng couldn't suppress it.

At the moment, he has 73 mission points, which can be used to upgrade the tunnel construction center, which is enough.

Done!

He didn't hesitate, and directly crossed out 20 mission points and 1 million technology points.

To Su Cheng's surprise, he thought that it would take at least 24 hours to upgrade the tunnel construction center, but after only ten minutes, the upgrade was completed.

Consciousness reaches into the inventory and looks again.

Su Cheng looked disappointed.

"Hey, it's boring, it's a waste of Lao Tzu's technology points and task points. ”

There is only one change brought about by the upgrading of the tunnel construction center from the primary to the intermediate level, that is, the diameter of the tunnel has changed, from 5 meters to 10 meters, from one track to two.

Next, to move up to Advanced, you need 50 quest points plus 10 million tech points.

Su Cheng estimated that the promotion from intermediate to advanced level only brought an increase in the diameter of the tunnel, and he pouted a little.

In fact, if he had thought about it carefully, he would have thought of this a long time ago.

But man is sometimes an emotional animal, and it is easy to follow the excitement, and before the fog is lifted, curiosity and anticipation will push beyond anything else to lift the veil of that thing.

Without dwelling on anything, Su Cheng glanced at the remaining 53 technology points, and his heart was a little itchy.

The mind moves.

10 task points are crossed.

The draw begins.

Shout......

The colorful turntable began to fly, and after so many lotteries, Su Cheng's mood now was not as excited as when he was in the previous lottery, and he was relatively calm.

Bite!

The turntable stops spinning, and golden chests appear out of thin air.

Su Cheng didn't hesitate, his thoughts moved, and he quickly opened the treasure chest.

[Congratulations to the host for obtaining a 'Primary Mission Extension Card']

"Mission extension card? "Su Cheng drew one of this thing before, and now it's in the inventory.

If nothing else, Su Cheng is likely to use one on the task of a big movie.

"One more time!"

Row out 10 mission points and continue the draw.

Bite!

[Congratulations to the host for obtaining a bottle of 'Estrus Potion']

"Estrus potion? ”

Su Cheng muttered, he remembered that when the system was promoted to the advanced level, Ren Wu's girl gave him the coke that Ren Beibei drugged him, which made him uncomfortable for a while, and finally thought of the effect of the estrus potion, so as to complete the first stage of the upgrade task.

There were 33 points left in the task point, Su Cheng thought about it and resisted the idea of continuing the lottery.

At present, in the United States, Su Cheng has more than 900 small robots.

Now it seems that the number of people is enough for the time being.

But just in case, these remaining task points, he thought about it, maybe they should be exchanged for robots, converted into actual labor, of course, they can also be kept.

In addition, special tasks for small workers can now be done.

Su Cheng thought about it, and he could wait until he returned to China before doing it.

Soon, the plane arrived in San Francisco, and then Su Cheng and Robert transferred back to Silicon Valley.

Robert went straight to the headquarters of Chaowei Technology, and Su Cheng returned to the villa to linger with Isha and enjoy a warm service from her.

……

In the early morning of January 12, Su Cheng drove the Sibel supercar to the Second Research Institute.

At this time, under the supervision of Wu San, the 3D printer completed the printing of another 40 sets of mobile phone production lines.

In addition to the 12 sets of production lines that have been shipped to mobile phone factories, there are now a total of 52 mobile phone production lines in the United States.

In Wu San's laboratory, Su Cheng looked at a pile of gun parts and bomb devices, and the corners of his lips twitched.

"Didn't I let you get explosives, why didn't you listen?" Su Cheng glared at Wu San angrily.

"Boss, this is not explosives, it's a bomb device, I'm just bored and just tinkering. ”

"Still talking back, is there a difference?" Su Cheng stretched out his hand and patted him, "If you accidentally explode, our company will all have to finish playing." ”

"Rest assured, boss, these are basic detonating devices, not filled with any explosives. Besides, if I can detonate this most primitive bomb, then what kind of weapons expert am I called, you underestimate me too much. Wu San said proudly and confidently.

Regarding his quibble, Su Cheng said in an undeniable tone: "No matter what, you can stop me now and make a gun, do you hear?"

Seeing that the boss was showing signs of madness, Wu San didn't dare to joke at this time, and hurriedly stood up and saluted, indicating that he understood.

"Okay, don't be that serious. Su Cheng said: "Tunnel construction center, you know what it is, right?"

"Tunnel Construction Center!!" Wu San's breathing froze slightly, and his eyes showed surprise, "Boss, you got it?"

"Well, I've finished a mission, I got it yesterday. ”

"Oh my God, great, boss, great!" said Wu San excitedly.

"What are you excited about, isn't it just a platform for building tunnels?" Su Cheng said disdainfully, in this regard, he thought that he was much calmer than Wu San and Denyi.

"Hey boss, the tunnel construction center is not as simple as you seem. Wu Sandao: "As far as I know, when the tunnel construction center is upgraded to the epic level, it can directly cross the supersonic channel and build a neutrino channel. ”

"Neutrino channels, what's that? Su Cheng's eyes froze, and he became a little interested.

Wu Sandao: "Neutrinos belong to the type of lepton, which is not charged and can freely pass through ninety percent of the matter in the universe, and the smallest neutrino has a mass of only one millionth of an electron. ”

"The neutrino channel is a channel that can help neutrino characteristics cross space and geography, and to put it simply, if you are in Silicon Valley now, if you build a neutrino channel from Silicon Valley to Shanghai, you will only need to take one minute by the corresponding train, and it will only take half an hour to go from the earth to the moon, and even after the technology is mature, the time can be shortened. ”

"In the future world, there are only two ways to cross the stars, one is to use neutrino channels to travel faster than light, and the other is to build wormholes and travel through ......"

When Wu San said this, Su Cheng's face shook, and he waved his hand to interrupt: "That, you stop for a while, don't say too much, I can't afford to say too much, just stop in moderation." ”

"Boss, you think I'm bragging?" asked Takesan.

"No, it's just that the things you talked about are too far away from reality, so let's discuss how big the tunnel construction center is and how to build it. Su Cheng said.

It's not that he doesn't believe Wu San's words, but that he should seek truth from facts, and if he thinks too much, it's just in vain.

"It's simple, the tunnel construction center is only the size of a bed, if you want to build a tunnel, you can use the satellite link to accurately locate the targets in the two places, and then operate directly on the construction center. ”

Su Cheng nodded slightly, and suddenly, he thought of a question, "By the way, this tunnel can be built directly through the rocks underground?"