The 2021 edition of the Whit e Paper on Science, Technology and Innovation describes a scenario for the realization of Society 5.0, a future society that is safe and secure and that makes the diverse happiness (well-being) of each individual happen. This issue introduces the key to this scenario, ''convergence of knowledge'' and the science and technology that forms its basis. ''White Paper on Science, Technology and Innovation'' is a Door to the Future- What Kind of Convergence of Knowledge is Required in Today's Society? MEXT's 2021 White Paper is a Door to the Future: Achieving ''Diverse Happiness for Everyone'' through ''Convergence of Knowledge'' What is the Internet of Things(IoT) that Supports the Realization of Society 5.0? Bringing about a Decarbonized Society with New Technologies Autonomy is the Key to Seizing Opportunities What is Value Co-creation for Well-being?

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