In July 2016, someone introduced me to something, and at that time it cost 5,000 yuan each. During that period, I was earning tens of thousands of yuan a day and didn't pay any attention to it. I thought at the time that this thing was no different from online game coins; to put it bluntly, buying this must mean I was out of my mind.

Looking back now, I can only say that I was indeed out of my mind.

Fortunately, nothing is absolute. In 2019, while abroad, I encountered these things again, and this time I chose to understand them and seriously learned new knowledge. After that experience, my whole perspective opened up. Sometimes opportunities are right in front of you; the key is having the courage to admit you don’t understand.