DXY htf order flow remains after CPI

How to understand the phrase "the simpler the trading system, the better"?

What is the degree of simplicity here? Or the simplicity here is not what I thought, just use a few indicators, so what do you think of this sentence?

Some people say: One point of trading depends on technology, nine points depends on emotion, what do you think?

The trading mentality is always demonized. It is true that the mentality will affect the order, but it is too exaggerated. Shouldn’t it be that one has strong technology to have a stable mentality?

Are you happy doing business?

There is no such question, so I mention it.

What books did you guys read when you created your own trading system?

How to choose a platform, can copying or calling orders really make money?