loucal wrote:
… Leave it to God to create the most perfect Holodeck for us to live. …
Yes.
The difference with Star Trek’s holodeck is that we (at least our physical bodies) are actually part of this hologram in space and time. Hence, God is all and in all, and we all live and have our being in Him. God is everywhere and everything, up to the minute ultimaton and beyond..

I think the so called "phi-spiral" and other macroscopic and microscopic fractal geometrical patterns of nature, are just as real and observable as relativity theory and quantum mechanics. All such lawful space-time regularities must ultimately be properties of the First Source and Center functioning around what TUB calls "the circle of eternity" (not a spiral)..
Quote:
42:4.2 We do not fully comprehend the almost endless changes to which physical energy may be subject. In one universe it appears as light, in another as light plus heat, in another as forms of energy unknown on Urantia; in untold millions of years it may reappear as some form of restless, surging electrical energy or magnetic power; and still later on it may again appear in a subsequent universe as some form of variable matter going through a series of metamorphoses, to be followed by its outward physical disappearance in some great cataclysm of the realms. And then, after countless ages and almost endless wandering through numberless universes, again may this same energy re-emerge and many times change its form and potential; and so do these transformations continue through successive ages and throughout countless realms. Thus matter sweeps on, undergoing the transmutations of time but swinging ever true to the circle of eternity; even if long prevented from returning to its source, it is ever responsive thereto, and it ever proceeds in the path ordained by the Infinite Personality who sent it forth.
42:10.1 The endless sweep of relative cosmic reality, from the absoluteness of Paradise monota to the absoluteness of space potency, is suggestive of certain evolutions of relationship in the nonspiritual realities of the First Source and Center — those realities which are concealed in space potency, revealed in monota, and provisionally disclosed on intervening cosmic levels. This eternal cycle of energy, being circuited in the Father of universes, is absolute and, being absolute, is expansile in neither fact nor value; nevertheless the Primal Father is even now — as always — self-realizing of an ever-expanding arena of time-space, and of time-space-transcended, meanings, an arena of changing relationships wherein energy-matter is being progressively subjected to the overcontrol of living and divine spirit through the experiential striving of living and personal mind.
By the way, you said: "… Check out the diagram of this combination of spiral inside the Phi ratio rectangle. Notice how the radius 'jumps' by Phi ( The Divine Ratio) every 90 deg arc. These are 'Quantum' changes. …" I’m not sure I understand that. Can you explain what you mean by "quantum changes" at every 90 degree arc?

The self-similar spiral structures of the Mandelbrot fractal are basically produced by a very simple iterated mathematical formula that was discovered more or less coincidentally by Benoit Mandelbrot. Quantum events may be seen here as the calculated result of a (variable) number of iterations of the formula for every point in space; thus producing the (infinite) fractal image..