Sometimes I realize that the fewer tools you have, the more you earn; The more you learn, the less you earn. In the face of the general trend, the simplest tools, including buying regular stocks, going long and only buying spot stocks, are far more profitable than learning to short sell or trading semester options for half a day In my opinion, the high-end operations that must be protected against lightning are short selling against the trend and taking volatility, as well as doomsday options. These two things are not a problem in themselves, but they are essentially similar: wanting to create volatility through leverage when there is no market trend No matter how skilled the expert is, they may also stumble when encountering demon coins like Ethereum: 0x17205fab260a7a6383a81452ce6315A39370db97, due to mistakenly carrying orders and earning money on other demon coins. Even if you look in the right direction for certain AI semiconductor storage and other sectors, due to the time cost of options, a single order can be reset to zero, and because you want to show off the operation, you may not earn as much as the simplest operation The essence of a tool is to identify the direction and expand returns. Essentially, what needs to be done is to follow the trend, rather than playing with flowers in a stagnant market or even going against the trend. The truth is simple.