There is an activity in the contract where you guess whether Bitcoin will go up or down. Everyone must avoid playing this. I just tried one trade; although I made a profit, it was largely due to luck. The rules are extremely deceptive, equivalent to rock-paper-scissors. If you lose, you lose ten dollars; if you win, you only get eight dollars. You might think that's already bad, but what's worse is that there are also dozens of dollars in price differences. For example, if you are bullish and the price increase within the set time is within dozens of dollars, you still lose (I didn't pay much attention to the exact figure; I think I opened a position at 93380 and the marked opening price was 93428). As long as you dare to play for a long time, even Jack Ma would lose everything. This is the binary options play from over ten years ago, which foreign regulatory agencies have long banned. People like ZCP should go to hell; Americans should sentence him to life imprisonment. They will use any means to make money.