We often read that is foolish or that it's all bullshit and so on.
You know, at the end I started analyzing charts and graphs for months and at the end I realized that a statistic from the point of view of the realization of the trades is absolutely there.
What matters is where to position yourself, with how much to position yourself, where to go out in case things go in the opposite direction and when to bring home the profits.
I know what I'm doing because I created it, and so I already know statistically what to expect from my operations.
The only thing I always have to compare is my Backtest with my actual operation and analyze if my statistics correspond to my study of the past.
P.s. I do not consider fundamental and quantitative analysis to be wrong.