publication date: Saturday, September 4, 2021 (part of Fall 2021)

category: Internet

clue: If you want to make card payments on a mobile phone, or write about it in 280 characters or less, then you need this guy's popular technologies. #busyCEO

explanation: Dorsey co-founded Twitter and founded Square, and is simultaneously the CEO of both companies. more…

difficulty: medium

solved by: Russ Wilhelm, Steve West, LaVonne Lemler, Chris Lemler, Samir Mehta, Richard Slominsky, Matthew Preston, Denise Sawicki, Erik Bates, and Aaron Shurtleff


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