"By the way, husband, Kobe and Durant, they are estimated to have arrived now, let's go and meet them!" Liu Mengqi reminded gently.

That's when an uninvited guest arrived.

"Grandpa! Grandmother! Kobe Bryant and Carnegie Bryant are out the door! An elf-odd little boy rushed in without knocking on the door.

When he rushed through the door, he found his grandparents hugging each other, and he couldn't help but be stunned.

"Grandparents, go on! I didn't see anything! The little boy slipped out.

"Hey, children in this era are too precocious, they know kissing when they babble, and they start to have boyfriends and girlfriends in kindergarten. . . ." Li Qiang sighed and said.

"Yes, at that time, we didn't taste the forbidden fruit until the second year of high school." Thinking of the first time with Li Qiang when he was a child, Liu Mengqi, who is in her 70s, still couldn't help but flash a trace of shame on her face, "Let's go, let's go!" ”

The two walked outside the door, and a black man with a white beard was waiting outside the door with a burly black young man. The young man was surrounded by several of his own children asking for autographs.

"Kobe, are you ready for today's game?" Li Qiang asked casually.

"Hey, they're all so old! I can't pull it! Look who I brought! ”

"Hey! You've brought your grandson Dale Carnegie with you! He is now a big man in the league, with a salary of 150 million a year and three championship rings, which gust of wind can please him! ”

"Mr. Li Qiang, hello!" The black young man took the initiative to stretch out his hands and shook hands with Li Qiang. For Li Qiang, the legendary prehistoric emperor, Carnegie, although he is now the MVP of the league, still pays a lot of respect.

"Haha, then your grandson is probably suffering today! I'll tell him what basketball is! Li Qiang said with a smile.

At this time, a silver-gray car stopped in front of Li Qiang's house like a ghost. The car does not touch the ground when it is moving, and only falls back to the ground when it stops.

This is the high-end maglev sports car that is very popular now, the principle of levitation is to borrow the power of the earth's magnetic field to counteract gravity, and theoretically the speed of sound on a straight surface such as the Nevada Salt Lake can exceed the speed of sound.

In a moment, four old men who looked to be in their eighties walked out of the car, and they were Durant, James, Wade and Curry who were in the league fifty years ago. Despite their age, they still have the pride and confidence of the league's top players written on their faces.

"Come, come, sit down! Running thousands of miles away, has the jet lag adjusted? Li Qiang hurriedly greeted.

"It's okay, it's okay! We usually exercise regularly, and this little problem is not difficult for us! The gray-haired, skinny Durant said with a relaxed expression.

"We spent $100,000 on a space flight this time. Hey, 50 years ago, if we were going to space, how many people were there in the whole human race? Now you can go up and see it for any money. Still, space is beautiful! James said, the wrinkles on his forehead that could not be dissolved like 10,000 years of snow.

"Yes!" Wade agreed, "From the vastness of space, the earth is so beautiful and fragile. This blue pearl is the planet we are guarding! Wade sighed. is worthy of being a beautiful man 60 years ago, and Wade is still full of poetry today.

"People are rare in their eighties. At our age, we can get together a few times less! Curry sighed. In fact, among the players here, he is a few years younger than James, Wade, and Durant, except for Li Qiang, who is the youngest, and his hair is still half black.

"By the way, why didn't Ray Allen come. Isn't he in good health? Li Qiang asked Curry.

"His granddaughter graduated from college, and he's going to her graduation ceremony." Curry said with a grin.

"By the way, your last three-point game. Which of you two lost? Li Qiang continued to ask.

"Well, don't mention it. I made 46 of 100 balls, but I didn't expect him to explode and score 53! I'm ten years younger than him! Curry looked annoyed.

"Haha, you usually have an open three-point shooting rate of 50% when you practice. You are all seventy or eighty years old and still at this level, and the maintenance is really good! Li Qiang gave a thumbs up.

"Hey, how can you compare to this pervert of yours?" James was not convinced. His face has become the image of a sad grandfather, why is Li Qiang still so sunny and full of youthful vitality?

"yes, what's your health secret?" Durant also started gossiping. At this age, these NBA Hall of Fame players are concerned about health topics.

"Haha, it's nothing, exercise more." Li Qiang snorted.

"Cut" "Cut", I refused to share... "Li Qiang was despised by everyone...

In the 60s of the 21st century, human development has reached a new height. Controlled nuclear fusion has been achieved, and humanity has an almost inexhaustible source of energy.

Even if all the stored oil, coal and other energy sources on the earth are burned to release energy, it will only be 10^23 joules, which can be used by humans in the early 21st century for 100 years, and the extraction cost is getting higher and higher as high-quality oil fields are exhausted. So in the 20s of the 21st century, that is, when Li Qiang retired and Zhang Guangming became the hegemon, solar energy completely replaced traditional energy sources such as oil and natural gas. As an inexhaustible source of energy, solar energy is undoubtedly a strong competitor to traditional energy sources.

The main limiting factor for solar energy is the cost of solar panels. However, with the continuous advancement of science and technology, the cost of solar energy is already equivalent to $40 per barrel of oil by 2025! A total replacement is inevitable!

The sun releases 10^24 joules of energy to the Earth every year! By the middle of the 21st century, all kinds of solar panels have covered an area of 20 million square kilometers, accounting for 7% of the total area of the earth! Counting all kinds of losses and weather impacts, solar energy has far surpassed traditional energy sources to become the largest energy source on earth!

Twelve years ago, controlled nuclear fusion finally achieved a breakthrough after more than half a century of efforts by scientists! The so-called controlled nuclear fusion is to carry out the nuclear fusion that can only be produced in the interior of the sun under controllable conditions! In other words, move the sun to Earth! Before this technology matured, the tens of millions of degrees of heat and hundreds of millions of atmospheres required for nuclear fusion could only be achieved by uncontrolled nuclear fission! So hydrogen bombs can only be used to explode, not to generate electricity!

Now, the technical bottleneck has finally been solved. The Earth has 10^21 kilograms, or 10 trillion tons of oceans, of which one millionth is deuterium and tritium, the isotopes of hydrogen that can be used for fusion, which is 10^15 kilograms.

According to Einstein's formula of relativity E=mc^2, nuclear fusion loses 1% of its energy, E=10^13*10^17=10^30 joules! That's the equivalent of the total energy of the sun shining on the earth for a million years! This amount of energy is enough for human civilization to develop to the level of a fourth-level interstellar civilization! And nuclear fusion does not need to be as troublesome as solar panels, and it is not difficult to extract isotopes from seawater!

To get back to the point, with the realization of controlled nuclear fusion, the energy available to human beings suddenly skyrocketed geometrically, and it was a big step towards becoming an interstellar civilization and getting rid of primitive civilization. In this context, a new wave of space has been set off on Earth, and the price of space tickets has become cheaper and cheaper. Nowadays, ordinary people only need to pay $100,000 to buy a plane ticket to enter space. Counting the impact of inflation, the actual expenditure is only equivalent to 20,000 US dollars in 2015!

And now China has become the world's largest country! The first economic power and the first military power! In the world's leading position in the field of science and technology! The controlled nuclear fusion of 12 years ago was achieved by Chinese scientists! This has further established China's position as the world's number one scientific and technological power!

With the rapid progress of China's power, the renminbi has also appreciated rapidly against the dollar. Nowadays, the renminbi has become the world's largest currency, and the exchange rate between the US dollar and the renminbi is about 1:1!

Therefore, it is equivalent to our current only 20,000 yuan to come to space! It's about as expensive as a first-class international flight!

However, the Chinese population base is too large, although it has become the world's largest power, China's per capita income is still slowly catching up with the old powers such as the United States! Nowadays, it is not uncommon for Chinese to take space flights!

And the world has also set off a wave of learning Chinese, such as "which gust of wind blew you here", "people to eighty years old" (now everyone in the world can live to 70 years old, so this sentence has been tampered with) and so on, has become a world buzzword.

At this time, Li Qiang and Liu Mengqi, who had already stepped into the innate realm, keenly noticed a regular vibration coming from the ground, and a strange smile appeared at the corner of their mouths at the same time.