Around 16 years ago, I worked in Silicon Valley of the United States and knew a word called IT ecosystem. I think it means the clustering effect of thousands of IT companies in Silicon Valley, capital of venture capital firm as well as the allocation of management and technical talents through competitions.

Afterwards I returned back to China. Only in recent years the word “IT eco…

Some teachers, I know them and they know me too, for example, my teachers and classmates in XJTU, OGI, and BiMBA;

Some teachers, I know them but they don’t know me, for example, my teachers such as Zhongtian Yi in Lecture Room or Lynda.com;

Some teachers, I never know their names, for example, roles in movies or TV shows I took a look, people in parks or on streets, etc.;

Some t…