Companies may need to invest a lot of energy in employee training. What is the cost and time? After the training, the company may not give rewards. Some people can't learn, so there is no way out. Proportion is a problem. So training is very expensive.

The best way for you to beat your opponent is to learn more and faster than him. Just like you have to build a dam first, don't wait for the flood to come before you act. At that time, the loss will be even greater, and it will be more expensive not to train.