Videos--more specifically mp4 videos--<i>can</i> be embedded into web pages. They just don&#x27;t autoplay on mobile browsers.<p>Hence why there is a push for alternatives to Gif&#x2F;APNG and mp4&#x2F;webm. We want a video-like animation, that plays on page load.<p>Now, the real question is, why don&#x27;t mp4s play when we hit play?<p>I can only speculate, but I think it&#x27;s because mp4s are streamable media, where a troll can simply decide to keep streaming mp4s and drain the user&#x27;s bandwidth. (Never mind the fact that it is also a problem with Gifs.)