> One of the things that AMP allows is to know that is it save to prerender a page. Documents can be instructed by a viewer to e.g. only load resources visible

> One of the things that AMP allows is to know that is it save to prerender a page. Documents can be instructed by a viewer to e.g. only load resources visible above the fold and absolutely no external JS. Which begs the questions: Who prerenders and on what criteria? Assume page A which has a link to AMP-forked page B. Does that link need rel=prerender for every browser? Does one need to query the AMP-ness of every page one links to? Does one need to be Googles page cache to link to AMP-pages and get in the benefit of prerendering? Or is the prerendering implemented in the AMP runtime? Does it only work if page A and page B are both AMP-enhanced?