web 1.0: web media, readable
web 2.0: interactive facebook, twitter, qq, weichat (problem: the data created by users is owned by Internet companies)
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Potential problems: The scale of Internet companies’ users is too large, even larger than that of the country. At this time, if some behaviors based on commercial interests conflict with social and public interests, it will have a huge impact on society
web 3.0 executable (self-directed revenue) (hope: creators own data, not intermediaries)
