When Will The Last Ever McDonald's Restaurant Close Its Doors?

McDonald's is one of the most successful franchises of all time — wherever you go, all over the world, there's bound to be a Golden Arches nearby. They stopped counting how many billions sold decades ago. Its dominance seems destined to last forever... but nothing ever does. When will the final McDonald's close?

Also, what factors will put McDonald's out of business at last? Will it be the economics of factory farming? Changing consumer tastes? Environmental disaster? Some kind of massive economic or cultural shift? Soylent Green?

Vote below for the date when the last McDonald's will close forever, and please share your reasoning with us. I'm dying to see what the consensus will be on this one...