After a year, Li Shitang set foot on the earth again.

Yes_ he had actually been gone for no more than two months, but he found that he didn't know the Earth a little anymore.

The inhabitants who had been living underground had come to the surface to tidy up their homes, the thrusters humming and the blue flames bringing warmth to the inhabitants around them.

And more importantly...

Where is my great American emperor?

"We launched an antimatter bomb," an official said embarrassedly.

At that time, seeing the mecha all over the sky, several leaders really overreacted.

However, the antimatter bomb was launched at the right time, and if the mecha of the emperor was scattered, the earthlings would definitely not be opponents one-on-one.

"The metal balls in this place..."Li Shitang pointed to the various metal beads on the ground, large and small.

The man went on to explain.

"Five thousand nuclear bombs, there are hydrogen bombs in them, it's okay, it's very strong..." Li Shitang was speechless, he didn't know that firewood and rice were expensive, and there were only a total of how many nuclear bombs and how many hydrogen bombs there were on the earth, and most of them were released at once.

But now is not the time to worry about that.

With the technology of the emperor, the current earthlings can no longer be afraid of the cold, and naturally many activities can be carried out.

For example, a conference and a 50-year plan?

With the great development of science and technology, the industrial strength has not risen but fallen because of this severe cold, so the time for the current earthlings to build an ordinary warship has been extended from the original two years to five years, how long does it take to build that Penglai?

Scientists estimate the time to be 60 years...

"We've only been building 4,000 thrusters for 20 years, and you're telling me it's going to take 60 years?" Li Shitang looked at the blueprint of the Penglai on the screen, this decision was indeed made in his absence.

He doesn't have a strong desire for power, but he doesn't feel anything, but he feels that sixty years is too long...

How many of the current earthlings will live to sixty years from now?

And it would take generations to build this ship, and the cost would be too great.

"The environment back then was still different from now, after all, it was the participation of the whole people...", the designer replied, "In the past 60 years, we still expect the data to continue to advance in science and technology along the way..."

The battleship was only 4,000th the thruster, but at that time the thruster was built by three billion people.

And what about the battleships, it's 300,000 ...

Li Shitang sighed and expressed understanding, but he could only ask him to speed up as much as possible.

"If we had more new humans, we could speed things up a lot," the engineer added.

Li Shitang nodded, the new human being refers to the human being who has registered psychotropic drugs.

Unfortunately, this change is not at the genetic level, so the intellectual and physical qualities of these people cannot be passed on to the next generation.

Every generation of people has to re-take drugs.

"So in the next 50 years, the main direction of our biology department is to go deep into the genetic level and artificially control the evolutionary direction of human beings..."

"We have obtained the intelligent transmission technology of Diluo, and the future plan is to use it on a new generation of mecha to solve a series of problems that still exist in the current mecha..."

Li Shitang nodded, waved his hand and continued.

One by one, experts and professors stood up to express their opinions and assumptions, and made prospects and predictions for the future.

Although Li Shitang nodded and smiled, he rarely expressed his opinions.

As long as it is unanimously discussed, he will not object, even if his intuition thinks it is wrong.

Civilization can't pull out the seedlings to help it grow, he doesn't know if his interference is considered to be pulling out the seedlings to help grow, after all, it stands to reason that he is also an earthling...

However, in the past few decades, the scientific community, especially in materials science, has become deeply dependent on itself.

If you have any ideas, you don't have to study and experiment first, but use them to point fingers...

Although this saves a lot of time, it does make your own scientists less hands-on.

He's trying to reduce his presence as much as possible.

There are too many things to study in this kind of meeting, and there is a tendency to start fighting if there is a disagreement on the distribution of manpower and money. Although Li Shitang talks about efficiency, it is impossible to end it in a short time.

But a sudden signal interrupted the memory.

This signal was received by the observatory and was originally thought to be an unintentional wave of rays generated by the movement of the planets.

This kind of thing is everywhere in the universe, and it's not unusual at all.

But a boring researcher sorted it out and found that this information actually has a certain pattern...

He told the leader who was in a meeting about this discovery.

The leader told this information as an anecdote in his spare time, and then Li Shitang heard it.

He saw this message...

"Hi Traveler..."

Everyone in the Star Federation already knows that a planet is approaching, although the government has issued an order to observe and not act rashly, but who cares about you.

Countless astronomy enthusiasts have set up telescopes and started looking for this planet.

Countless electromagnetic wave enthusiasts and alien enthusiasts have also joined them, but unlike these guys with astronomical telescopes, their methods seem to be more technological.

They're sending a signal in the direction of the planet...

They signal their existence to an unknown civilization...

Perhaps, in their eyes, there is no life on the planet at minus a few hundred degrees Celsius?

Or have they been lonely for too long, longing for their own kind?

But their information fell into the hands of the earthlings, and from time to time, one or two radio waves were captured by the earth and sent to Li Shitang.

"Hello dear friends..."

"Distant friends, let me see your hands..."

"That's what we Star Alliance people look like... Do you resemble us? ”

One by one, the messages were translated and then summarized in the words of the Spiritual Verse.

Various vocabulary and grammar were summarized, and soon after, a large dictionary of "Xinglian Language" had been compiled by her.

The book will be an elective course in many schools, but it will be a compulsory course for students in military schools.

Starlink expressed peace, but the earth will not return to peace so simply.

The state of the Star Federation is very similar to the earth back then, ignorant, naïve, and thought that this world was its own civilization, and also launched a poke with the location of the earth and human information.

Out of a desire to communicate, the performance of the earth at that time was understandable, but in the eyes of the current earthlings, that kind of behavior is too stupid!

If at that time the earth was not an experimental civilization of Yahwe, but a truly independent civilization...

If this podging is picked up by aliens...

They will deduce the technological level and mathematical level of the Earth based on the technology of the spaceship.

They can also see directly the structure of the human being, the position of the earth...

If it's a friendly civilization that picks it up, that's fine, but what if it's a civilization like Emperor Luo who doesn't say anything and starts fighting directly?

The earth wants to be peaceful, but only in the past...

After being exterminated by Yahe, betrayed by Turing, and attacked by the Emperor, now the earthlings just want to be stronger.

However, the current earth seems to be reborn and full of vitality, but in fact...

Their onshore oil resources, copper, tin ore and many other non-ferrous metals have been mined.

And despite the huge amount of manganese nodules and oil and gas resources on the seabed, don't forget that the sea is still covered with hundreds of meters of ice...

The planet needs resources, otherwise development will stagnate.

And a civilization that can send electromagnetic greetings obviously has what the planet needs...