After many people started to trade stocks, they began to read industry research reports, study fiscal and monetary policies, look at K-line charts, visit companies and attend various meetings to learn knowledge.
There are also many people who started to pay attention to the Federal Reserve, the fight between the Democratic and Republican parties after trading in cryptocurrencies, and they are concerned about the US economy and have become US offshore citizens.
In fact, reading these is useless for your short-term trading. Buying a "good" position and holding it for a long time is the right way.
In the secondary market, knowledge is useless.
How to define a "good" position is very simple. After you buy it, you will feel at ease no matter how you go.