05/06/2013 11:37 am ET

Mark Zuckerberg And Kevin Systrom On What Really Happened When Facebook Bought Instagram

There’s no picture of the moment when everything changed for Kevin Systrom. But if there were, it would look something like this: A lanky, very tall, dark-haired man in his late 20s sits on a bench at the Caltrain commuter station in Palo Alto, California. A sepia tone and weathered patina might underscore the mood of weighty contemplation.

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