A few years ago, someone told me about a high-probability K-line reversal pattern, but they only explained half of it and refused to share the other half. They said I had to pay 10k USD if I wanted to hear it.

I didn't pay, and kept pondering it myself. Later, I actually figured it out on my own. Today, I was talking to a friend about this, and casually asked AI to do a backtest. The result showed a success rate of over 86%, with the volatility after the reversal as shown in the chart.
Looking at it this way, 10,000 isn't really expensive.