One of the best notions of Grant Morrison's run on Batman was the idea that ALL stories from Batman were part of one guys life, even the crazy, goofy ones that the franchise had been ignoring for decades.
Morrison outright said that his New 52 Superman was taken from left-over ideas from All Star Superman about Clark's earliest days as a scappy champion of the underdog.
How would you explain ALL of Superman's history as the story of one guy's life?