$ZHENGWEI GROUP (02147.HK)$ I have a question, is this thing...

I have a question, is this thing really useful? It is based on past data and trends to predict the future.

But the future is changing at any time, such as Federal Reserve speeches, economic data releases, financial reports, etc. These new information are "unknown variables", so how can we make predictions and conclusions without knowing the "future variables"? Woolen cloth?

Moreover, there is also the inflow of independent decision-making funds from various asset managers, investment banks, pension funds and other countries in various countries, which will affect prices.

Is the discussion so amazing?