Scientists of Vienna University of Technology pointed out that holographic effects can be demonstrated from flat (two dimensional) surface, and surrounding reality is possibly following the same principles.
Now, if you think about it, that is a reasonable hypothesis, however, it should be noted that the opposite effect can also be realized when four (or five or more) dimensional reality is projected into three dimensional surrounding (let's call it 4D->3D), perceived by humans. Example understandable by humans is the theater of shadows (3D->2D), or three dimensional cathode ray projector, know as tube television (again 3D->2D).
It is always possible to project more dimensions to less. At the same time, 2D->3D Holographic effects allow explanation of some of the known quantum phenomena, such as probability of where the electron will be at anytime as opposed to the earlier teachings that electrons "orbit" around the nucleus of the atom.
Holographic effects also alleviate "understanding" of "spooky action at the distance (quantum entanglement)", but that is where the limits of the quantum teachings, understandable by the commoners end.
All in all, two thousands years ago, in Greece, people were arguing if the world rests on the backs of three elephants or three whales, and assumed that the world is flat.
Our incomplete understanding of surrounding world raises way more questions than we have answers:
1. If currently scientists say that the space is unlimited, perhaps the number of dimensions is also unlimited....
2. Quantum entanglement has been demonstrated and is a scientific fact, the problem is that nobody can prove that all of the particles are not UN-entangled.
3. Why the speed of light is finite, then why quantum entanglement does not care about the distance and is instant.
I truly believe that in the next several decades there will be so many new inventions and experiments related to the quantum world, that our current discussions will resemble discussions will resemble ideas debated by Hellenistic scholars. I just hope that one day a smart individual will be able to explain everything so that we could understand, and find relationships between all the components the same way we understand the relationship between Ohms, Volts and Amperes.