Let’s start with a fundamental concept. Reality is (sometimes) unpopular. We may not like the reality of our existence. We may choose to ignore reality because it does not support our self-image or beliefs. Our perception of reality is likely to be influenced by multiple factors including – among other things - the physical condition of our five senses, our psychological state at the time of our observation, how past experience manipulates our interpretation of the present.
Reality, it would seem, is subject to interpretation.
We thus have a subjective reality that is perceived as a true representation of our personal physical universe. In addition, there are degrees of reality. There is anything we can imagine; there is everything we can observe; and there is the immediate environment which demands our attention. These realities are all simultaneously present in our personal consciousness.
If you and I exist in the same space time reality, then our perception of reality is framed by the same laws of physics. If however, we do not share the same space time reality, then your observations will be different from mine. If we are in the same universe, our experiences will be bound by the same laws of physics. If however, you move into another universe, then your experiences will be governed by the laws of physics of that exist in your new universe. Those laws may, or may not, be the same as those of the universe you left.
Let us look at this from a different perspective. What it is like to be a dog cannot be fully understood by a human because a dog’s experience can only be fully understood from a dog’s point of view. In like fashion, what I experience can only be understood from my point of view, and even though you are near me in space-time, your experience can only be understood from your point of view.
Reality is relative – and it is subject to personal interpretation..