News on the move: MSNBC mistake, Slack, 7-11, and Elon Musk

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MSNBC was practicing its election night coverage when it mistakenly broadcast an election vote graphic. Slack co-founder Cal Henderson told techies at the web summit event in Portugal that slack intends to grow its daily user base from eight to 500 million. 7-11 plans to go cashless and test self checkout at 14 of its stores in Dallas. That Tesla roadster Elon Musk launched into space with starman at the wheel has now traveled beyond the orbit of mars. Yahoo Finance's Adam Shapiro discusses.

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