It is mainly to find the solution to the problem during the search attempt. When it finds that the solution condition is no longer satisfied, it will "backtrack" and try another path.
For the choice of active funds, I think the core is to do these two things well-performance traceability and performance attribution.
I believe everyone has heard a lot about performance review. The most basic thing is to choose a fund with a fund manager's performance of over 5 years as far as possible.
The principle behind it is also very simple. On the one hand, if the fund manager's performance is too short, it is likely that this performance is achieved by a certain stage of market style, such as manager Cai, who is talked about the most.