Since the end of the 20th century, the emergence of the Internet has brought great possibilities for reducing the cost of social communication.
Since the emergence of the Internet itself is a revolutionary product of information dissemination, people have developed a large number of tools for information dissemination based on the Internet and Web technology. Among them, tools that help people conduct online social networking have gradually matured in the past 20 years, effectively solving the cost efficiency problem of information dissemination.
Since the manufacturing cost, storage cost, dissemination cost and people’s interaction cost of information based on the Internet have been greatly reduced, the possibility of achieving “profitability” in marketing communication in the six degrees of separation theory has also been greatly increased.
Since then, various social network services based on the Internet and Web technology and based on the six degrees of separation theory have flourished, which are the Internet Web software tools known as SNS (Socal Network Service) today.
Under the premise of greatly reduced costs, in the last 10 years of the 21st century, the six degrees of separation theory has also become one of the top industry guiding theories in the Internet industry from a paper theory with no real commercial value.