I think it's the limit for what most people can see as jittery motion. You may be able to differentiate between higher FPS settings, but above 24 hertz most people shouldn't be able to see discrete steps.
That's true but (at least here in Sweden and among my friends and classmates) I think most people read at least occasionally. Personally, however I'm in the +10 category by a long shot
I doubt the accuracy of this map. I have never seen a dominos in Sweden and I've seen a few dunkin donuts so the map is, at least not fully accurate. Also didn't McDonald's shut down in Russia?
And with it, it's a hat-astrophe?