Within a few days, we've had news about the relaunch of two social media platforms from the past. Vine, the short-form video platform that was bought by Twitter in 2012, is being resurrected as Divine. Friendster, the OG social media platform that paved the way for Myspace and later Facebook, is also back as an iPhone app. While a lot of today's TikTok and Snapchat users might never have heard these names, they'll bring back memories for many millennials. But this revival feels like it's about more than just nostalgia and a resurgence of Y2K trends: it's a reaction to the problems with today's big social media platforms. Vine is back as Divine and still based around looping six-second videos (Image credit: Divine) The new Vine – sorry, Divine – retains its predecessor's focus on looping six-second videos with a renewed emphasis on creator ownership. With a Cryptographic Video Authenticity model helping audiences identify real content, it promises to be a "place for authentic, non-AI-generated media...…