Well, which is it for? To make your page come in quicker when you click it, or to be a more accessible UI for choosing among options of sites you've visited and

Well, which is it for? To make your page come in quicker when you click it, or to be a more accessible UI for choosing among options of sites you've visited and want to return to? To me they are different things, and shouldn't be lumped together the way they are.