不定项选择题 There was seemingly nothing wrong with Instagram, up to the moment that it underwent an identity crisis. Each day, as usual some three hundred million users had been meticulously curating and sharing images of their lives, meals, selves, and bookshelves. Earlier this week, though, the app took a hard right turn. It introduced Stories, a feature that<br/> allows users to post photos and videos, sometimes embellished with text and illustrations, in a kind of slide show, which automatically disappears after twenty-four hours. The content must have been recorded recently — nothing older than a day can be uploaded — so the result is like viewing the backstage footage rather than the rehearsed performance. Stories looked nothing like Instagram and everything like Snapchat, another app that has for years offered users a platform for this very same interaction<br/> It has always been common for software developers to improve their work by co-opting their competitors’ ideas. Many functions of the iPhone, for instance, are the result of Apple’s artful borrowing — the Reading List in Safari closely resembles dedicated link -saving services, and after apps like Instagram and Hipstamatic became popular the company added a halfhearted set of analog-looking filters to its camera app. Snapchat itself is not immune to the practice. A few weeks ago, it debuted a feature called Memories, whereby users can post old photos or videos from their phone’s camera roll, rather than having to film or shoot in the moment. Instagram, which pre-dates Snapchat by less than a year, has offered this since it first appeared on the App Store, in 2010. Even Memories, however, doesn’t totally erase the immediacy of Snapchat, since a photo, no matter how old, still disappears after twenty-four hours, consistent with the overall spirit of the app. Instagram’s more recent move, by contrast, seems to run counter to its precious spirit — a betrayal of all the careful curation and perfect visuals.<br/> All of the following are true EXCEPT: ______.