Yeah, all we'd have to do is convince every manufacturer of operating systems and/or browsers to agree on a common set of fonts, work out licensing/font rendering technology issues etc., then convince all web developers across the world (or at least a sizable portion) to redevelop their websites to work with this list, then enforce the font restriction, and then convince users that this is somehow a good idea because invariably a bunch of the websites they use are going to break. We also need to do it within a few years, otherwise it's too late, and our main argument is going to be 'but maybe websites can use fonts as part of a fingerprint to track what websites we are visiting'.