 Indeed, the original purveyor of possible worlds, Gottfried Leibniz, pictured possible things as angling to become actual. The more a thing competes with other things, the more likely that there will be something that stops it from becoming real. The winners in Leibniz’s struggle for existence are cooperative. They uniquely fit the niche formed by other things. This key hole into existence implicitly conveys information about everything. The little bit that is not, tells us about all that there is.