Gold, namely gold, is one of the earliest elements discovered by human beings. Gold has a beautiful luster, and all aspects of its performance are better among metals. The most special thing is that it is a scarce resource, so it is often considered as a very valuable item. People used it as currency thousands of years ago, especially in ancient China. If there was a silver currency, there would naturally be gold.
From here we can know that gold was very popular in the past. Because gold is very popular, some people will start to study this artificial gold technology. Is the artificial gold technology reliable? How did China develop artificial gold technology? In fact, this metal, gold, is very similar to other metals. If the number of protons in its nucleus is destroyed, it can become other metals. Therefore, if you want to change other metals into gold, you can also use the same method. If you change the number of protons in the nucleus, you can change the energy it releases, and then it can become artificial gold.
So Ge Hong started a similar study. Although the technology at that time was not very advanced, people didn't know how he used the changes of atomic nuclei to cause different changes, but what is certain is that he did successfully study the technology of artificial gold in the third century in the park, and the gold studied by artificial gold is a kind of gold with higher hardness than ordinary gold, just like the alloy widely used in modern times, and its performance is better than some metals.
The above story only represents my personal opinion. Please forgive me if there is any mistake.