How do you see mechanical the older the more popular?

Mechanical to do a long time less people, mechanical principles and changes are not big, the longer the dry time, the easier to master the most basic principles and expand the method, and then their own summary of their own set of routines, continue to dry continue to improve, on the contrary, the Internet computer industry, the big changes in the day and month, the knowledge of the iterative fast, 10 years ago, the programming language are now fewer people to use. This is relative to the farmers uncle, to more than 60 years old, agricultural work has been dry up very hard, but mechanical engineers factory is still collected, can still do it, so in China's vast rural areas to popularize the phrase it.