Hmm interesting, maybe someone is somehow smart enough to predict where the market will go, when to buy and sell.
But it is also not certain that these people are always right! I guess it's also wrong sometimes, and it also doesn't seem like a simple skill you can get.
While there are some iterations and one can be fairly certain that there will be ups and downs, for example, there is a Bitcoin bull market every 3-5 years or so, it is much more difficult to know when a low will be reached or when the price will start moving significantly. So it's not just cycles and learning from history, but maybe something like talent.
Like some can be great artists and singers, but also many can't. I know I'm fine with relatively safe long-term investments, but I'm not very good at trading. So, I immediately stopped getting involved in it as soon as I realized I wasn't good at it, wasn't sure I would ever be good at it, and wasn't willing to invest my time and effort trying and figuring it out.