Mark didn't leave much before hibernation, he had a deposit in the bank before the hijacking incident, not a lot, after the hijacking of the earth, the order of human society was damaged, the economy naturally plummeted, and the money that Mark stored in it turned into waste paper.

Later, after the re-establishment of human civilization, the financial industry came back to life, and many people who did not exchange their money for food before the cold winter made money, and with the recovery of the economy, the total value of their wealth increased several times, and Mark knew this, but he did not have time to pay attention to this money at that time.

What people didn't expect was that twenty years after Mark's hibernation, the war broke out in the five regions, the world economy ushered in the second big regression, Mark's Moon Bank became the only one who survived, and everyone exchanged the hedging items for lunar currency to preserve their assets, the exchange rate of the lunar currency to the earth skyrocketed overnight, and the value of Mark's money increased nearly 100 times in a short period of time, coupled with the accumulation of interest for decades, the money that could only buy a car back then accumulated into a lot of wealth, of course, He didn't know anything about this, and he was still trapped in the spiritual world at this time and couldn't get out.

However, this false prosperity did not last long, and the next few rounds of economic contraction in the lunar financial circle brought everything back to its original state, perhaps as fate would have it, Mark's money, without his knowledge, went through several twists and turns, and finally returned to the same value as it was at the beginning.

Mark looked at the bank statement in front of him, thinking that this matter is quite ironic, if he was still the kid who drove the engineering truck at the beginning, he would probably be so angry that he would bleed, but Mark is different now, his soul has been tempered and become tenacious, he also laughed at this matter, and then took out all the money in it and invited Sun Tan to have a meal.

You know, in the year when that money was at its highest, it was enough to buy the building where the revolving restaurant was located, but now it's only enough for a few good meals.

After returning to the modern society, it took Mark half a month to get used to all this, he is not an avant-garde person, he was outdated in his original era, but fortunately, the product designer will help him solve this problem, and the optimization of the user interface can guide you to use it little by little, whether it is an implantable smartphone or an Internet of Things network.

Mark himself has installed a retina-implanted smart chip, not because it's so interesting, but because it's really inconvenient not to have it, most social networks run on it, and he looks like a young man in his twenties, and he can't always mix with those two percent antiques.

The place where Mark lived had been demolished twice, the first time by urban planning, and the second time when a heavy railgun shell hit the neighborhood during the War of the Five Regions. Mark also had to live in the place arranged for him by Sun Tan, which is a high-end community, which is a sanatorium of the Moon Research Institute in the Earth region, most of the researchers involved in the Lightspeed Project will live here after retirement, Sun Tan also has a few suites here, but he has not retired yet, he is still the backbone of the whole project.

Sun Tan didn't reveal much about the progress of the plan, and Mark didn't know whether the situation was good or bad, Sun Tan only said that he would recover well now and talk about it after he got used to everything, anyway, he had been sleeping for fifty years, and it wasn't bad for a day or two.

To be honest, after Mark arrived in this era, what shocked him the most was not the development of network technology, nor the almighty little chip, but the world of IoT.

Nowadays, every household only needs to have one thing on hand, 3D printers.

Unlike the 3D printers of Mark's time, the 3D printers of the Internet of Things world completely connected the whole world, and the first Internet of Things revolution connected the world with data, while the Internet of Things world used materials to make the world communicate with each other.

As small as a cup, as big as a computer, can be directly copied with a 3D printer, everyone's home is equivalent to a universal factory, the traditional light industry is completely extinct, all daily necessities can be printed with this machine, ion tubes like cables extend in all directions into every household, these pipes are composed of countless small ion tubes, each tube transports a substance, a wrist-thick ion tube can supply all the substances needed by the 3D printer, of course, if you need to print special materials, you must go and buy a special substance lozenge separately.

The circulation of goods in human society has evolved from a simple material circulation to the flow of scientific and technological property rights, people do not need to buy any items, but to buy the drawings of this item, you can print it at will after buying and downloading the drawings online, and the price is more than twice as low as buying the physical object. The price of drawings is also very different, the highest-end drawings can also be sold at sky-high prices, and the cheapest drawings are packaged and sold in various daily life packages or random packages.

Of course, most people can use software to design the items they need, even three-year-olds can design things like cups and chopsticks, but some high-tech product drawings still need to be purchased, and people can buy the product drawings they need, and they can also sell their own creative ideas.

Mark is not used to those miscellaneous design programs, the 3D printer is very interesting, he downloaded all kinds of miscellaneous design drawings on the free website, until his apartment is full of all kinds of debris, he realized that he printed out too much waste, fortunately, there are recycling pools on advanced 3D printers, you can decompose the items you don't need back into the ion tube, and then use it to print new items, which consumes very little, the world of things not only facilitates human life, but also protects the environment, From the fourth year of the Tianhua Era, human consumption and pollution of the environment reached an all-time low.

"I've been sleeping for fifty years, and it's not bad for one day or two, you said." Mark rolled his finger and poked it on Sun Tan's chest, he changed into a thick coat today and felt good, Mark was called out by Sun Tan in the middle of the night to push a flying machine China, and he was still confused.

The vehicle they were riding in was very fast, there were no windows inside, and even if they had, they could only see a layer of fast-moving color blocks, like an improved version of the lunar shuttle, faster, more stable, and able to operate in a high-gravity area like Earth.

"Well, you tap! My old arms and legs can't withstand the strength of a young man. Sun Tan shook off his hand, rubbed his chest and complained: "But I must come and see it today, this is the moment to decide mankind, our geocentric exploration machine has hooked that civilization egg, the future road, it depends on tonight!" ”