Everyone with a smartphone would be an amateur photographer, if they wanted to be. So if photos were the killer feature of the app they should build, what were the main opportunities? On the whiteboard, Systrom and Krieger brainstormed three of the top problems to solve. One, images always took forever to load on 3G cellular networks. Two, people were often embarrassed to share their low-quality phone snaps, since phones weren’t nearly as good as digital cameras. Three, it was annoying to have to post photos in many different places. What if they made a social network that came with an option
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