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When we started Snapchat everyone said disappearing messages was the dumbest idea they had ever heard. Good.
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Augmented reality will be bigger than the smartphone. The smartphone replaced the camera the map and the newspaper. AR will replace the smartphone.
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The fastest way to spread a product is to make it useful to small groups of friends. Not the whole world. Friends first.
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I do not care what Instagram copies. By the time they copy it we have already moved on to the next thing.
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Mark offered me three billion dollars. I was 23. Saying no was the easiest decision I ever made.