Hi doma,
I see your theory. Good explanation.
For myself, I believe in - and am really interested in - what is in front of me in the dimensions I inhabit. I don't need to discount my senses to appreciate the world I live in. For me, there is wonder in what I can see and taste and touch and hear and smell.
That there may be other dimensions I am content to admit, although with a mind that is definitively 4D I am as well suited to comment on the other dimensions as I am to visualise a scene in infrared or ultraviolet.
The only language I know which might successfully contemplate an alternative reality is mathematical. And even there, people struggle with problems of infinity and with framing a coherent equation. The physicists have been working on their string theory for an age, and last I heard they have struggled the entire time to devise a model which actually works or to get any useful observations to support their notions. The hologram thing derives from their speculations as they think about the way information operates on the edge of a black hole. http://en.wikipedia.org/wiki/Holographic_principle
You kinda lose me when you make the universe a human soul-centric thing, however. I think that is all about the conceit of religions and it is not something I find persuasive. I don't see the notion of a universe made to decorate consciousness as likely. Lot of trouble to go to for what purpose?
In the four dimensions we can appreciate, however, force is universal. Descartes is famous for his phrase that "I think, therefore I am." In the end, one can theoretically discount everything down to one transcendental belief system or another by removing from consideration everything we sense. As I've said, your hologram world reminds me a little of the parallel contemplations of Buddhism.
But for myself, I am really interested in exploring the truth provided within the given dimensions and especially I avoid recourse to human conceits like the ideas of god and soul. Reality isn't about us. We are insects who happen to be capable of a bit of primitive thinking.