Having cured all of the physical injuries that one would encounter from having an active lifestyle (knee injuries, head trauma, etc.) we now have more time to focus on things that are more esoteric and only manifest in subtle ways. Cancer, autism, etc. are the problems of the first world, industrialized, and coddled demographic that a site with this title would have.
Not when your browser fork is re-purposed for something else almost entirely, like an inline image or documentation viewer. As I understand it, organisms often have novel uses for old tools.