Set Theory Hypothetical Situation

There's something that's been bugging my mind for awhile, and it has to do with Set Theory, hypothetical situations, and philosophy. It's not my homework. I'm the kind of person that thinks of these types of things day in and day out. The idea is that there are 7 given "real" universes in (arbitrary container) set U⊃{u1,u2,u3,u4,u5,u6,u7}. Universe 1 simulates Universe 2 such that u1⊃u2, Universe 2 simulates Universe 3 such that u2⊃u3, and so on, until Universe 7 simulates Universe 1 such that u7⊃u1. These universes are in an arbitrary location L, and are not simulated in hypothetical parent universe P. What makes me curious is if the universes in arbitrary container set U actually exists or not. Because every universe is a simulation of another, U is pure data. Data needs a medium in which to be displayed and/or stored to exist. However, there is no P, and the data IS stored within itself. Thus, while the subset data has a medium to be stored in via a different subset, the set itself is still pure data that has no P to be stored in. The data cannot exist... but as soon as you observe the data, it has a medium to be stored in, and thus can exist again. Is U paradoxical? Or is there a way for U to exist without a parent universe P?