Is K-line analysis really useless?

Don't make it a myth. K-line analysis is just a tool. Some people can use a knife to cut vegetables for a state banquet, and some people can cut their own little finger.

How to make good use of tools is something that a craftsman needs to keep polishing, and the same is true for technical analysis.

And the market itself is changing, and controlling the "three rates" law of trading is the core, and tools are just auxiliary! It's not that it's useless, but it depends on how you use it!