For eBay, the aha moment was finding and winning one-of-a-kind items at auction from people all over the world. For Facebook, it was instantly seeing photos and updates from friends and family and sharing what you were up to. For Dropbox, it was the concept of easy file sharing and unlimited file storage. Or take Uber’s aha moment, which Uber cofounder and CEO Travis Kalanick explained as, “You push a button and a black car comes up.
