That's why Li describes the phenomenon as "Two steps back, three steps forward." He says, "Only with this sort of back-and-forth is it possible for society to gradually improve."
他因此用「後退兩步，前進三步」來形容台客現象的兩面刃效果，「而唯有在這種反覆拉扯之間，社會才有逐漸進步的可能。」