What is the original meaning and extended meaning of "big fish eat small fish, small fish eat shrimp and shrimp eat algae"?

Originally, it was a food chain, indicating the survival relationship between species and extending to the law of the jungle. For example, powerful enterprises can acquire other relatively weak enterprises.

We can also think that this world is the world of big fish eat small fish, a turbulent and changing world. We should change the problem and pass the buck.

Life itself is a process of systematic thinking. Renmin University of China Press published a book called "eat small fish Eat Big Fish" by Lo Guat Ding, an associate professor at the National Institute of Education. Through the close connection between systematic thinking and practical problems, it helps us to uncover the mystery of systematic thinking and make it easier to understand. As a small reading, this book briefly introduces the basic ideas and principles of systematic thinking. It helps us to deeply understand how everything that happens in everyone, every organization and even the whole world is closely related to the system model. The basic principles and ideas of systematic thinking are not limited to the office, but also can add happiness to our family life.