Let's assume the world is defined as everything there is. Then subjective experiences are included in the world, and they are "things".
Then each subjective experience has a point of view through which it experiences the world. These point of views are also things or properties of the world, because they exist.
Then one of the points of view is assigned to me. I call this point of view as "I" or "eye" or simply "me".
Now if the world is everything there is, then this "eye" is also a thing in the world, and it's unambiguously assigned to me. This assignment itself is a property of the world.
Yet, if you ask someone else, they say the "eye" is assigned to them, because they observe the world from their point of view. Or they might say that there are multiple "eyes" that are assigned to multiple subjective experiences.
However, if that was the case, then it would be impossible to determine which "eye" should correspond to my subjective experience. There are multiple people with multiple subjective experiences, all having a point of view, then there is not enough information to know which one is in fact my life that I'm living now.
On the other hand, if there is a single "eye" that is assigned to multiple people, then that would require the property of the "eye" to take on multiple states simultaneously. This would mean I am me, but I am also someone else at the same time.
Yet, because of my existence, I know that in the world, there exists such single unambiguous assignment, because I simply know which person I am. Does this lead to a paradox?
The only way I can think of resolving the paradox is that there may be multiple subjective experiences, but only one "eye" or point of view that is "me". So in fact, it's only me who observes the world, and others do not.
This also implies that there is one-to-one mapping between the objective world and points of view, instead of one-to-many.
How else could the paradox be resolved?