A university student, a member of a club studying cryptocurrencies, attends a meeting at a university in Seoul, South Korea, December 20, 2017.

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A university student, a member of a club studying cryptocurrencies, attends a meeting at a university in Seoul, South Korea, December 20, 2017.

A university student, a member of a club studying cryptocurrencies, attends a meeting at a university in Seoul, South Korea, Dec. 20, 2017. 

Credit:

Kim Hong-Ji/Reuters