As long as you still have some desire to make money, you should understand that the four words that have defined profitable businesses throughout history are: don't believe in any new trends or new technologies. Those are all tricks to fool children; you can't keep up. The logic of making money has been clearly written in history. Now is just about putting old wine from our ancestors into a high-tech bottle.

First, in ancient times, this business was called a casino. Now, it's more upscale and called finance, stock trading, or cryptocurrency trading. In the past, a group of people would gather around a table betting big or small; now, men and women of all ages stare at K-line charts dreaming. The technology is indeed more advanced, and the data is more accurate. But those pairs of green eyes are no different from gamblers 2000 years ago. In this track, the profit comes from an insatiable greed that can't be contained.

Second, in ancient times, this was called a brothel. Now, it's called the beauty economy—tourism, companionship services, home-based chores. Basically, it's human nature—being lustful. Wealthy people used to keep mistresses; those without money visited brothels. Now, everyone stares at their phone screens, watching those girls twist and turn, happier than anything. Those red eyes can't hide the foolish desire inside.

Haruki Murakami once said that throughout history, every industry has its rise and fall, but only the sex industry remains forever prosperous.

Third, in ancient times, this was called alchemy. Now, it's called health and wellness, anti-aging, stem cell transplantation, brain-computer interfaces. In the past, emperors sought immortality; now, the wealthy pursue stem cell transplants. Essentially, it's two words: fear of death. As long as people want to live, there's a market. This track is driven by humanity's obsession with defeating death.

Fourth, in ancient times, this was called usury. Now, it's inclusive financial consumer loans. Some installment plans—what used to be landlords lending grain—are now platforms offering loans. They even want to give you 52 installments for buying vegetables. As long as you have desires, there's a market. Profiting from interest rate spreads is like harvesting chives planted in the ground—cut one crop, then another.

Do you understand now? Do you see? The people who truly make money are never those who understand technology, but those who see through human nature. Because technology becomes outdated, trends fade away. But the human needs of "greed, lust, fear, and scarcity" have never changed in 2000 years. If you can grasp these eternal truths, you can walk freely in this harsh era.