Mark Zuckerberg Quotes
The main Facebook usage is so big. About 20 percent of the time people spend on their phone is on Facebook.
Citations
Zuckerberg, Mark. Facebook Home Launch Event, 4 Apr. 2013, Menlo Park, CA.
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Mark Elliot Zuckerberg is an American media magnate, internet entrepreneur, and philanthropist. He is known for co-founding Facebook, Inc. and serves as its chairman, chief executive officer, and controlling shareholder. He also is a co-founder of the solar sail spacecraft development project Breakthrough Starshot and serves as one of its board members.