> Less JavaScript bloat, I think. AMP is mostly static content.

That's actually completely untrue. Every AMP component is a web component and requires JavaScript in order to run at all. And many have their own .js file powering it. You literally can't use an <img> tag on an AMP page. You have to use <amp-img>, which has a JS dependency.

OP is right, the primary reason AMP is fast is because Google is preloading the page in the background. AMP pages themselves aren't all that static, or really all that bandwidth efficient.

You're correct. No js bloat. In order to load Js files it has to be in accordance with the AMP spec and they have a strict list of js you can load.

Or the site you're already on: HN.