Because this is a mature operation, many teachers have introduced and explained it (Chen Qiang's video introduction is highly recommended here), so I just want to talk about my own understanding on the basis of the existing one and try to make this problem clear in a simple way. In order to facilitate understanding, here is an article as an example. References: Lin, Zhao Zile, Invisible Obstacle to Balanced Development: Dialect, System and Economic Research on Technology Diffusion, 2017,52 (09):182-197. In fact, the message of this article can be clearly felt from the title, that is, dialects affect the technology diffusion by affecting the system.