Swipe through your social media apps of choice and you will likely notice them looking increasingly similar. The rapid ascent of TikTok, now with more than a billion monthly active users, to become the attention-sapper of choice for many has threatened the dominance of old favourites like no app before it. With Instagram's Reels and YouTube's Shorts, Meta and Google both adopted very recognisable vertical feeds of short-form videos to try to stop users succumbing to their Chinese rival's infamous algorithm. And in the not-too-distant future, Reddit is getting in on the act. The forum-style platform, which sees users join...