No, of course not! Reality exists.
If by "Reality" we mean 3D + time then, Jacob Bekenstien, and Leaonard Susskind would have us believe that we live in a holographic Universe that is 2D + time.
Kieth appears to accept the premise of identifying concepts with various ways of presenting them. Ex god or God. I would and do go further and present "G"od as synonym of "U"niverse/"G"od and give clear definitions.
god = demi-gods ex pharaoh or king etc.
God = Universe ergo occupied space
0} "G"od/"U"niverse =,
.....01} spirit-1 { spirit-of-intent }, metaphysical-1, mind/intellect/concept ex concept of space, God, Toyota's etc,
------conceptual line-of-demarcation---------------------
......02} metaphysical-2, macro-infinite non-occupied space, that, embraces/surrounds the following,
.......03} finite, occupied space God/Universe.
Italics emphasize mind/intellect/concept.
Capitals emphasize cosmic whole integrities.
Mopac a : the Being perfect in power, wisdom, and goodness who is worshipped as creator and ruler of the universe
There exists no rational, logical common sense or evidence for "infinite mind" nor any "being" that is perfect, unless we consider Universe as a "being" --like human being--- and I do not.
We do find there exist finite limits and we only discover --via mind/intellect-- a finite set of cosmic laws/principles.
We know there can only exist five and only five regular/symmetrical and convex polyhedra of "U"niverse/"G"od.
Sure there exists no reason for an infinite set of differrent polyhedra to exist in conceptually, however, if we live in a finite occupied space Universe, then we can say there cannot exist and infinite set of occupied space polyhedra within any finite period-of-time. I.e infinite set can only correlate to an eternal existence beyond finite periods-of-time.
Mopac 2: a being or object believed to have more than natural attributes and powers and to require human worship; specifically: one controlling a particular aspect or part of reality
So your God is not natural? Is a black hole not natural? Is access to more complex metaphysical-1, mind/intellect/concepts ---ex mathematics-- not natural? Of all biological creatures we know on Earth, only humans have this access. For only 6 billion creatures to have this access to the more complex mind/intellect/concepts not natural?
If your God is beyond the concept of nature then I dont see any rational, logical common sense to even begin to explore that which is beyond nature, ergo beyond Universe or Cosmos etc.
..."Nature, in the broadest sense, is the natural, physical, or material world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science."...