That might not be very nice for some mobile users that are on a site with a ton of links (like a news site) :)

There is no hover for mobile. Maybe track eye focus in future :-)

It's a continuation of a joke with the parent comment regarding loading every page. It would be the brute force version of InstantClick :)

Not a bad shout. Not EVERY page, but if you have a five page site, you might as well pull in all five at the time, and save the other four requests later.

The actual HTML is only going to add another few KB.

I'm sorry that I don't feel it very efficient, because sites with dynamic contents like HK or eCommerce/financial sites, very page is different from minute to minute.

But caching the skeleton of the page will work. We need browser to do it for us, just like browsers already caches the images.

Or the pages that are most likely to be requested, based on previous session data which you have stored and analyzed.