Animated GIFs have become so huge. They're everywhere. But why? On the surface, they're pretty silly—a few frames of video, endlessly looping in time. There are GIFs of Star Trek's Picard facepalming, ...

An animated image - the animated GIF being the most popular format - is more than a static image, but not quite a video. It's typically used for short animation sequences, and used to capture and ...