I posit that reality is most likely that which we observe (or do fancy sciency stuff with colliding protons and numbers to detect a Higgs Boson). Super realities that contain this one MIGHT exist, but the probability that they do is low, due to the inability to detect, interact or manipulate them. Effectively, they don't exist.
It's kind of like Time Machines. If they existed, people would be popping in and we'd know about it? The probability that Time Machines exist AND people are super careful about it and there's no mistakes is about as likely as any of the other complex endeavors Man has set out on having zero impact or visibility on the world like the Shuttle Program, the Manhattan project or drilling for oil. If Time Machines exist (presumably in the future, but by their nature, effectively through out all time) then somebody will do something noticeable with one eventually.