If there are 1 million years of human history, assume this is equal to one day.

Wilber Schram, the father of communication, has a famous "last 7 minutes" metaphor: "If the history of mankind is 1 million years, assume that this is equal to one day.

1 day = 1 million years; 1 hour = 41 66667 years; 1 second = 1157

In this day, the progress of human civilization is as follows:

At 09:33, the original language appeared (0.1 million years ago)

The official language appeared at a.m. (40 thousand years ago)

Text appears at PM (before March 13, 500)

Forty-six seconds before midnight, guundun invented the western movable print (1450)

5 seconds before midnight, TV was first publicly exhibited (1926)

Three seconds before midnight, the advent of electronic computers, transistors, and satellites (1946, 1947, and, respectively) "said Schram." The first 23 hours of the day, almost all history of human communication is blank, and all major developments are concentrated in the last seven minutes of the day." It was the last seven minutes that wrote the golden period of human history, but the last three seconds before midnight opened a new chapter for humanity to enter the information society.