This week marks the 10th anniversary of the iPhone, which hit store shelves on June 29, 2007. (It might be more accurate to say they grazed store shelves before landing in the hands of buyers who spent days camped outside Apple Stores.) Now, any number of statistics speak to the seismic shift the iPhone caused. Four billion people own a smartphone. The devices generate hundreds of billions in revenue each year. They gave rise to entire industries like smart homes and drones. Hell—you’re probably reading this on your phone.