Here’s a paradox: Nothing exists for a social system other than what it can observe for itself; thus, for a world without the observing system to exist (say, a world where you as an observer were never born), the system would have to be present to observe it.
A self-referential system cannot conceive of a world in which it does not exist; furthermore, the system cannot conceive of its own ending. It must always assume there is something coming next–something in the future to observe. Self-reference is always tautological. It goes in circles. Beginnings and endings can only be observed from the outside, by other observing systems. This is why for self-referential systems the world is endless.