A "subset of HTML" that by specification is required to load Javascript from a central CDN, and by specification will let you wait multiple seconds before it shows anything if that JS doesn't load, even if perfectly usable content is loaded already.

A subset wouldn't require you to load js to use built-in features like forms. A subset would just remove features or elements, which would make the whole load a js lib to make it work superfluous.

AMP is not a subset of HTML. It's a superset of a (badly defined) subset of HTML.

AMP is an unethical scheme by Google to appify and control of the Web. There are many articles about it.

Here are some other pages:

https://duckduckgo.com/?q=site%3Anews.ycombinator.com+amp&t=...