Hypersphere World-Universe Model Evolution of the World

The main objective of this paper is to discuss in frames of World-Universe Model (WUM) an Evolution of the 3D Hypersphere World from the Beginning up to the present Epoch. WUM is the only cosmological model in existence that is consistent with the Law of Conservation of Angular Momentum. To be consistent with this Fundamental Law, WUM introduces Dark Epoch (spanning from the Beginning of the World for 0.45 billion years) and Luminous Epoch (ever since for 13.77 billion years). Big Bang discussed in Standard Cosmology is, in our view, transition from Dark Epoch to Luminous Epoch due to Rotational Fission of Overspinning Dark Matter (DM) Supercluster’s Cores and self-annihilation of Dark Matter Particles (DMPs). WUM envisions Matter carried by DMPs from the Universe into the World from the fourth spatial dimension of the 4D Nucleus of the World. Luminous Matter is a byproduct of DMPs self-annihilation. WUM solves a number of physical problems in contemporary Cosmology and Astrophysics through DMPs and their interactions: Angular Momentum problem in birth and subsequent evolution of Galaxies and Extrasolar systems – how do they obtain it; Fermi Bubbles – two large structures in gamma-rays and X-rays above and below Galactic center; Missing Baryon problem related to the fact that the observed amount of baryonic matter did not match theoretical predictions. WUM reveals Inter-Connectivity of Primary Cosmological Parameters and calculates their values, which are in good agreement with the latest results of their measurements. In 2013, Model predicted the values of the following Cosmological parameters: gravitational, concentration of intergalactic plasma, and the minimum energy of photons, which were experimentally confirmed in 2015 – 2018. “The Discovery of a Supermassive Compact Object at the Centre of Our Galaxy” (Nobel Prize in Physics 2020) made by Prof. R. Genzel and A. Ghez is a confirmation of one of the most important predictions of WUM in 2013: “Macroobjects of the World have cores made up of the discussed DM particles. Other particles, including DM and baryonic matter, form shells surrounding the cores”.


Introduction
E. Conover outlined the following situation with the measurements of an expansion rate of the universe in "Debate over the universe's expansion rate may unravel physics. Is it a crisis?" [1]: • Scientists with the Planck experiment have estimated that the universe is expanding at a rate of 67.4 km/s Mpc with an experimental error of 0.5 km/s Mpc; • But supernova measurements have settled on a larger expansion rate of 74.0 km/s Mpc, with an error of 1.4 km/s Mpc. That leaves an inexplicable gap between the two estimates.
L. Verde, T. Treu, and A. G. Riess gave a brief summary of the "Workshop at Kavli Institute for Theoretical Physics, July 2019 " [2]. It is not yet clear whether the discrepancy in the observations is due to systematics, or indeed constitutes a major problem for the Standard Cosmology (SC).  [4]. A. Mann gave a summary of the situation with the measurements of 0 in "One Number Shows Something Is Fundamentally Wrong with Our Conception of the Universe" [5].
In our view, it is a major problem for SC that connected with the principal difference between Cosmological Time along with Time-varying Primary Cosmological Parameters (PCPs) in World-Universe Model (WUM) and Solar Time along with Constant PCPs in SC. Many results obtained in WUM are quoted in the current work without a full justification; an interested reader is encouraged to view the referenced papers in such cases [6]- [25].

Hypersphere World-Universe Model
We can't solve problems by using the same kind of thinking we used when we created them.

Albert Einstein
WUM is proposed as an alternative to the prevailing Big Bang Model of SC. The main objective of the Model is to unify and simplify existing results in Classical Physics into a single coherent picture. In our view, there is a principal difference between Physics and Mathematics. I am convinced that Physics cannot exist without Mathematics, but Mathematics must not replace Physics. I absolutely agree with John von Neumann who said: "The sciences do not try to explain, they hardly even try to interpret, they mainly make models. By a model is meant a mathematical construct, which, with addition of certain verbal interpretations describes observed phenomena. The justification of such a mathematical construct is solely and precisely that it is expected to work".
WUM is a classical model, and is described by classical notions, which define emergent phenomena. By definition, an emergent phenomenon is a property that is a result of simple interactions that work cooperatively to create a more complex interaction. Physically, simple interactions occur at a microscopic level, and the collective result can be observed at a macroscopic level. WUM introduces classical notions once the very first ensemble of particles has been created at the cosmological time ≅ 10 −18 .

Beginning, Expansion, Creation of Matter, Content
Before the Beginning of the World there was nothing but an Eternal Universe. About 14.22 billion years ago the World was started by a fluctuation in the Eternal Universe, and the Nucleus of the World, which is a 4D ball, was born. An extrapolated Nucleus radius at the Beginning was equal to the basic unit of size , where = 2 0 , 0 being the classical electron radius [6], [7], [17]. The 3D World is a Hypersphere that is the surface of the 4D Nucleus. All points of the Hypersphere are equivalent; there are no preferred centers or boundaries of the World [20], [21], [22], [24].
The 4D ball is expanding in the Eternal Universe, and its surface, the Hypersphere, is likewise expanding. The radius of the Nucleus R is increasing with speed (gravitodynamic constant) for a Cosmological time from the Beginning and equals to = . The expansion of the Hypersphere World can be understood through the analogy with an expanding 3D balloon: imagine an ant residing on a seemingly two-dimensional surface of a balloon. As the balloon is blown up, its radius increases, and its surface grows. The distance between any two points on the surface increases. The ant sees her world expands but does not observe a preferred center [20].
The principal idea of WUM is that the energy density of the World equals to the critical energy density necessary for 3-Manifold at any cosmological time. A 3-Manifold is a space that locally looks like Euclidean 3-dimensional space: just as a sphere looks like a plane to small enough observers. In WUM, the World is a Hypersphere that is an example of the 3-Manifold [12].
According to WUM, the surface of the 4D Nucleus is created in a process analogous to sublimation. Continuous creation of matter is the result of such process. Sublimation is a well-known endothermic process that happens when surfaces are intrinsically more energetically favorable than the bulk of a material, and hence there is a driving force for surfaces to be created [12]. Matter arises from the fourth spatial dimension of the Nucleus. The Universe is responsible for the creation of Matter. Dark Matter Particles (DMPs) carry new Matter into the World. Luminous Matter is a byproduct of DMPs self-annihilation. Consequently, the matter-antimatter asymmetry problem discussed in literature does not arise (since antimatter does not get created by DMPs self-annihilation) [9], [10], [13].
The proposed process is a 4D process responsible for the expansion, creation of Matter and arrow of time. It is a hypothesis of WUM. In our view, the arrow of the cosmological time does not depend on any physical phenomenon in the Medium of the World. It is the result of the World's expansion due to the driving force for surfaces to be created.
The World consists of the Medium and Macroobjects (Superclusters, Galaxies, Extrasolar systems, planets, moons, etc.). Total energy density of the World equals to the critical energy density throughout the World's evolution. The energy density of the Medium is 2/3 of the total energy density and Macroobjects -1/3 in all cosmological times [12], [15], [18], [19]. the Medium is an absolute frame of reference. Relative to the MBR rest frame, the Milky Way galaxy and the Sun are moving with the speed of 552 and 370 km/s respectively [12].
WUM is based on Maxwell's equations for the Electromagnetism and Gravitoelectromagnetism, which contain [16]: • a single constant: the electrodynamic and gravitodynamic constant c ; • two parameters of the Medium: the magnetic constant (or vacuum permeability) 0 and the gravitomagnetic parameter ; impedance of free space (or wave resistance of free space) 0 that is a physical constant relating the magnitudes of the electric and magnetic fields of electromagnetic radiation travelling through free space. That is, 0 = | | | | = 0 , where | | is the electric field strength and | | the magnetic field strength. By analogy with the Electromagnetism, we introduced an impedance of the Medium = in the Gravitoelectromagnetism.
• two measurable characteristics: an energy density and energy flux density.
Maxwell's equations were published by J. C. Maxwell in 1861 [26]. He calculated the velocity of electromagnetic waves from the value of the electrodynamic constant c measured by Weber and Kohlrausch in 1857 [27] and noticed that the calculated velocity was very close to the velocity of light measured by Fizeau in 1849 [28]. This observation made him suggest that light is an electromagnetic phenomenon [29].
We emphasize that c in Maxwell's equations is the electrodynamic constant but not the speed of light in vacuum. By definition, the electrodynamic constant c is the ratio of the absolute electromagnetic unit of charge e to the absolute electrostatic unit of charge e/c , where e is the elementary charge. It is worth to note that the speed of light in vacuum, commonly denoted c , is not related to the World in our Model, because there is no vacuum in it. Instead, there is the Medium of the World consisting of elementary particles.
In frames of WUM, a gravitational parameter G can be calculated based on the value of the energy density of the Medium of the World [8], [11]: where a dimension-transposing parameter P equals to: Then the Newton's law of universal gravitation can be rewritten in the following way: where H is a Hubble's parameter: = = 1 . We apply the following transformation to Maxwell's equations for the Gravitoelectromagnetism: multiply mass by the parameter P and divide the impedance and gravitomagnetic parameter of the Medium by the same parameter P . As a result of this transformation: • All parameters of the gravitoelectromagnetic field have dimensions of "Length" and "Time"; "Mass" dimension has disappeared; • All physical parameters of the World measured in terms of the basic unit of size and the basic unit of time 0 = / become scalars; • Absolute Size and Age of the World equal to a dimensionless time-varying quantity = = 0 ; • The gravitoelectromagnetic charge has a dimension of "Area"; • The impedance of the Medium equals to the Hubble's parameter = .
It follows that measuring the value of Hubble's parameter anywhere in the World and taking its inverse value allows us to calculate the absolute Age of the World. The Hubble's parameter is then the most important characteristic of the World, as it defines the Worlds' Age. While in our Model Hubble's parameter has a clear physical meaning, the gravitational parameter = The second important characteristic of the Medium of the World is the gravitomagnetic parameter = −1 . Taking its inverse value, we can find the absolute Size of the World and the radius of the 4D Nucleus characterizing the curved nature of the World. We emphasize that the above two parameters ( and ) are principally different physical characteristics of the Medium that are connected through the gravitodynamic constant c .
It means that "Time" is not a physical dimension and is an absolutely different entity than "Space".
Time is a factor of the World. It is the most important characteristic of the Medium of the World [8].
In WUM, Time, Space and Gravitation are closely connected with the Mediums' parameters. It follows that neither Time, Space nor Gravitation could be discussed in absence of the Medium. Gravitation, Space and Time are all emergent phenomena [8]. WUM confirms the Supremacy of Matter postulated by Albert Einstein: "When forced to summarize the theory of relativity in one sentence: time and space and gravitation have no separate existence from matter".

Inter-Connectivity of Primary Cosmological Parameters
The constancy of the universe fundamental constants, including Newtonian constant of gravitation, is now commonly accepted, although has never been firmly established as a fact. All conclusions on the (almost) constancy of G are model-dependent. A commonly held opinion states that gravity has no established relation to other fundamental forces, so it does not appear possible to calculate it from other constants that can be measured more accurately, as is done in some other areas of physics. WUM holds that there indeed exist relations between all Primary Cosmological Parameters (PCPs), which depend on dimensionless time-varying quantity that increases with cosmological time , and is, in fact, a measure of the Size R and the Age of the World .
The Model develops a mathematical framework that allows for direct calculation of the following PCPs through Q [6], [14]: In frames of WUM, we calculate the values of these PCPs, which are in good agreement with the latest results of their measurements [9], [17], [20].
At the Beginning of the World (Q=1), the extrapolated value of 0 was: 0 ≅ 6.0640 × 10 30 −3 that is four orders of magnitude smaller than the nuclear density, and  The calculated value of in present epoch is in excellent agreement with experimentally measured value of 2.72548 ± 0.00057 [30].
Observe that practically all Macroobjects -galaxies, stars, planets, etc. -have arisen in a cold World when temperature of MBR was about 6 K . Our Solar system, for instance, was created when the temperature of MBR was about 3 . Therefore, any Model describing creation of Macroobjects must hold true in cold World conditions. E. Siegel in the paper "Surprise! The Hubble Constant Changes Over Time" [33] said that The expansion rate, and therefore the value of the Hubble constant, changes with time. The Hubble constant was higher in the distant past, when much of the light was emitted, but it's taken billions of years for that light to arrive at our eyes. If we went back to a time when the Universe was half its present age, the expansion rate was 80% greater than it is today. When the Universe was just 10% of its current age, the expansion rate was 17 times greater than its present value.
These values of the Hubble's parameter are in good agreement with the calculated values in WUM.

Cosmological Time vs. Solar Time
In our real life we use time that is defined by parameters of the Solar system: the rotation of the Earth around its own axis (day) and the Sun (year). We can name our time as Solar Time. The "Second" of mean solar time as the unit of time was used since 1862. MKS was adopted internationally during the 1940s, defining the second as 1⁄86400 of a mean solar day. This method was based upon the interaction between two objects, the Sun and the Earth.
Since 1967, the "Second" has been defined as "the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom". The Atomic Time is equivalent to Solar Time. = .
Cosmological Time marches on at the constant pace from the Beginning of the World up to the present Epoch. The absolute Age of the World equals to: = 0 × and is measured in seconds due to 0 = / is measured in seconds.
WUM revealed the Inter-Connectivity of PCPs and found them to be inversely proportional to different exponents of (see Section 2.3.). It means that at cosmological times close to the Beginning, PCPs changed considerably faster than in the present Epoch. For example, the temperature of MBR dropped down from the extrapolated value of 2.5446 × 10 10 K to the value of 6.4775 K during Dark Epoch (0.45 Byr) and to the value of 2.72518 K during Luminous Epoch (13.77 Byr).
R. M. L. Baker Jr. in the paper "A Theory of Our Universe" proposed a revolutionary "idea of a variable speed of time that has never before been put into the context of cosmology and a theory of our Universe". According to Baker, "the speed of time variation is much faster in the past than at the more recent time" [34]. It is interesting that "Notional graph of the change-of-speed-of-time variation with today's time dimension" in [34] looks like a graph of a function = 1 (compare with the dependence of PCPs values ~ 1 in WUM).
Assuming a linear decrease of a gravitational potential V in the universe, K. Trencevski explained both the Hubble red shift and the anomalous acceleration from the spacecraft Pioneer 10 and 11. The change of the potential V causes an accelerated time which is easily seen by the Hubble red shift [35].

Angular Momentum Problem
Angular momentum problem is one of the most critical problem in any Cosmological model, including the SC, that must be solved. Any theory of evolution of the Universe that is not consistent with the Law of Conservation of Angular Momentum should be promptly ruled out. To the best of our knowledge, WUM is the only cosmological model in existence that is consistent with it [21].
To be consistent with this Law a Model must answer the following questions: • How did Galaxies and Extra Solar systems obtain their substantial orbital and rotational angular momenta; • Why are all Macroobjects rotating; • How did Milky Way (MW) galaxy give birth to different Extra Solar systems in different times; • The age of MW is about the Age of the World (13.77 billion years). What is the origin of MW huge angular momentum? We must discuss the Beginning of MW; • The beginning of the Solar System (SS) was 4.57 billion years ago. What is the origin of SS angular momentum? We must discuss the Beginning of SS; • Why is an orbital momentum of Jupiter much larger than a rotational momentum of the Sun.
There is no possible means by which the angular momentum from the Sun could be transferred to the planets; • In the theory of planetary formation, all planets, being made of the same ingredients, should have the same composition, yet they don't.
In our opinion, there is only one mechanism that can provide angular momenta to Macroobjects -Rotational Fission of overspinning Prime Objects. From the point of view of Fission model, the prime object is transferring some of its rotational angular momentum to orbital and rotational momenta of satellites. It follows that the rotational momentum of the prime object should exceed the orbital momentum of its satellite. In frames of WUM, Prime Objects are DM Cores of Superclusters, which accumulate tremendous angular momenta before the Birth of the Luminous World. It means that it must be some long enough time in the history of the World, which we named "Dark Epoch" [20].

Dark Epoch
Dark Epoch started at the Beginning of the World and lasted for about 0.45 billion years. The 3D World, which is a Hypersphere of 4D Nucleus, started by a fluctuation in the Eternal Universe. 4-Ball is expanding in the fourth spatial dimension with speed . Density fluctuations could happen in the Medium of the World filled with DMPs and Ordinary particles arising as a byproduct of DMPs selfannihilation.
Heavy DMPs could collect into clumps with distances between particles smaller than the range of the weak interaction introduced in WUM. In the present Epoch equals to: that is much greater than the range of the weak nuclear force. Larger clumps will attract smaller clumps and DMPs and initiate a process of expanding the DM clumps followed by growth of surrounding shells made up of other DMPs, up to the maximum mass of the shells made up of DIONs at the end of Dark Epoch [20].
The process described above is the formation of a DM Supercluster Core (SCC). DMPs supply not only additional mass (∝ 3/2 ) to Cores, but also additional angular momentum (∝ 2 ) fueling the overspinning of SCCs (see Section 3.3). In our opinion, all SCCs had undergone rotational fission at approximately the same cosmological time.

Rotational Fission
MW is gravitationally bounded with Local Supercluster (LS) [36]. In WUM, we calculated an orbital angular momentum of MW based on the distance of 65 million light-years from LS Core and orbital speed of about 400 km/s [36] and found that as the result of rotational fission of LS Core, approximately ~10 6 galaxies like MW could be generated at the same time. Considering that density of galaxies in the LS falls off with the square of the distance from its center near the Virgo Cluster, and the location of MW on the outskirts of the LS [37], the actual number of created galaxies could be much larger [20].
The mass-to-light ratio of the LS is about 300 times larger than that of the Solar ratio. Similar ratios are obtained for other superclusters [38]. These facts support the rotational fission mechanism proposed above. In 1933, F. Zwicky investigated the velocity dispersion of Coma cluster and found a surprisingly high mass-to-light ratio (~500). He concluded: "if this would be confirmed, we would get the surprising result that dark matter is present in much greater amount than luminous matter" [39].
As the result of rotational fission of MW Core 13.77 billion years ago, approximately ~ 10 4 Extrasolar systems like the Solar system could be created at the same time. Considering that MW has grown inside out (in the present Epoch, most old stars are found near the center of the Milky Way, while the ones formed more recently are on the outskirts [40]), the number of generated Extrasolar systems could be much larger. Extrasolar system DM Cores can give birth to planetary cores, which in turn can generate cores of moons by the same Rotational Fission mechanism [20].  [31]. It means that this star must have formed between 13.66 and 13.83 Byr, amount of time that is too short for formation of second generation of stars according to prevailing theories. In our Model, this discovery can be explained by generation of HD 140283 by overspinning Core of the MW 13.77 billion years ago.
In frames of the developed Rotational Fission model, it is easy to explain hyper-runaway stars unbound from the Milky Way with speeds of up to ~700 / [42]: they were launched by overspinning Core of the Large Magellan Cloud with the speed higher than the escape velocity [20].

Luminous Epoch
Luminous Epoch spans from 0.45 billion years up to the present Epoch (during 13.77 billion years). According to WUM, Cores of all Macroobjects (MOs) of the World (Superclusters, Galaxies, Extrasolar systems) possess the following properties [15]: WUM refers to the OC detonation process as Gravitational Burst (GB), analogous to Gamma Ray Burst [13]. In frames of WUM, the repeating GBs can be explained the following way: • As the result of GB, the OC loses a small fraction of its mass and a large part of its rotational angular momentum; • After GB, the Core absorbs new DMPs. Its mass increases ∝ 3/2 , and its angular momentum increases much faster ∝ 2 , until it detonates again at the next critical point of its stability; • Afterglow of GBs is a result of processes developing in the Nuclei and shells after detonation; • In case of Extrasolar systems, a star wind is the afterglow of star detonation: star Core absorbs new DMPs, increases its mass ∝ 3/2 and gets rid of extra by star wind particles; • Solar wind is the afterglow of Solar Core detonation 4.57 billion years ago. It creates the bubble of the Heliosphere continuously; • In case of Galaxies, a galactic wind is the afterglow of repeating galactic Core detonations. In the Milky Way, it continuously creates two Dark Matter Fermi Bubbles [20].

S. E. Koposov, et al. present the discovery of the fastest Main Sequence hyper-velocity star S5-HVS1
with mass of about 2.3 solar masses that is located at a distance of ∼ 9 kpc from the Sun. When integrated backwards in time, the orbit of the star points unambiguously to the Galactic Centre, implying that S5-HVS1 was kicked away from Sgr A* with a velocity of ∼ 1800 km/s , and travelled for 4.8 Myr to its current location. So far, this is the only hyper-velocity star confidently associated with the Galactic Centre [43]. In frames of the developed Model, this discovery can be explained by Gravitational Burst of the overspinning Core of the Milky Way 4.8 million years ago, which gave birth to S5-HVS1 with the speed higher than the escape velocity of the Core.
C. J. Clarke, et al. observed CI Tau, a young 2 million years old star. CI Tau is located about 500 light years away in a highly-productive stellar 'nursery' region of the galaxy. They discovered that the Extrasolar system contains four gas giant planets that are only 2 million years old [44], an amount of time that is too short for formation of gas giants according to the prevailing theories. In frames of the developed Rotational Fission model, this discovery can be explained by GB of the MW OC two million years ago, which gave birth to CI Tau system with all the planets generated at the same time [24].
To summarize: • The rotational fission of Macroobject's DM Cores is the most probable process that can generate satellite cores with large orbital and rotational momenta in a very short time; • Macrostructures of the World form from the top (superclusters) down to galaxies, extrasolar systems, planets, and moons; • Gravitational waves can be a product of rotational fission of overspinning Macroobject's Cores.

Evidence of the Hypersphere World
The physical laws we observe appear to be independent of the Worlds' curvature in the fourth spatial dimension of the Nucleus due to the very small value of the dimension-transposing gravitomagnetic parameter of the Medium [8]. Consequently, direct observation of the Worlds' curvature would appear to be a hopeless goal.
One way to prove the existence of the Worlds' curvature is a direct measurement of truly large-scale parameters of the World: Gravitational, Hubble's, Temperature of MBR. Conducted at various points of time, these measurements would give us varying results, providing insight into the curved nature of the World. Unfortunately, the accuracy of the measurements is quite poor. Measurement errors far outweigh any possible "curvature effects", rendering this technique useless in practice. To be conclusive, the measurements would have to be conducted billions of years apart [12].
Let's consider an effect that has indeed been observed for billions of years, albeit indirectly [12]. 4.57 billion years ago the Sun's' output has been only 70 percent as intense during that epoch as it is during the present epoch [45]. One of the consequences of WUM holds that all stars were fainter in the past. As their cores absorb new DM, size of macroobjects cores and their luminosity are increasing in time ∝ 1/2 and ∝ respectively. Taking the Age of the World ≅ 14.22 and the age of solar system ≅ 4.57 , it is easy to find that the young Suns' output was 67% of what it is today [9].
In WUM, Local Physics is linked with the large-scale structure of the Hypersphere World through the dimensionless quantity Q . The proposed approach to the curved nature of the World agrees with Mach's principle: "Local physical laws are determined by the large-scale structure of the universe". Applied to WUM, it follows that all parameters of the World depending on Q are a manifestation of the Worlds' curvature in the fourth spatial dimension of the Nucleus of the World [12]. Sir R. Penrose has got Nobel Prize in Physics for "The discovery that black hole formation is a robust prediction of the general theory of relativity". At the same time, Prof. R. Genzel and A. Ghez have got their Nobel Prize for "The Discovery of a Supermassive Compact Object at the Centre of Our Galaxy".

World-Universe Model Predictions
According to the Nobel Prize in Physics 2020, there are the astronomical observation of the Supermassive Compact Object and the mathematical theory of Black Hole Formation that is a Robust Prediction. There is no experimental confirmation of the Black Hole's existence! On the contrary, the astronomical observation of the Supermassive Compact Object is a confirmation of one of the most important predictions of WUM in 2013: "Macroobjects of the World have cores made up of the discussed DM particles. Other particles, including DM and baryonic matter, form shells surrounding the cores" [6]. The discovery of the fastest hyper-velocity star S5-HVS1 that was kicked away from Sgr A*, made by S. E. Koposov, et al. [43], speaks in favor of WUM.

Conclusions
In our view, the outlined in the Introduction situation with the measurements of an expansion rate of the universe is the crisis for the Big Bang Cosmology based on Solar Time. This major problem for SC can be explained by • WUM based on Cosmological Time that marches on at the constant pace from the Beginning of the World up to the present Epoch along with time-varying PCPs; • "Big Rollout" Cosmology based on a variable speed of the Solar Time [34].
In our opinion, WUM gives the most probable way to solve the crisis with the measurements of the expansion rate of the World.
The Essence of WUM is: • The Finite World is a 3D Hypersphere of the 4D Nucleus of the World, which is a 4D ball expanding in the fourth spatial dimension. All points of the Hypersphere are equivalent; there are no preferred centers or boundaries of the World; • The Universe is responsible for the creation of Matter. Dark Matter Particles (DMPs) carry new Matter into the World. Luminous Matter is a byproduct of DMPs self-annihilation. Dark Matter plays a central role in creation and development of all Macroobjects; • The Medium of the World, consisting of protons, electrons, photons, neutrinos, and DMPs, is an active agent in all physical phenomena in the World. Time, Space and Gravitation are closely connected with the Impedance, Gravitomagnetic parameter, and Energy density of the Medium respectively. It follows that neither Time, Space nor Gravitation could be discussed in absence of the Medium. Gravitation, Space and Time are all emergent phenomena; • WUM is the only cosmological model in existence that is consistent with the Fundamental Law of Conservation of Angular Momentum; • WUM is based on two parameters only: dimensionless Rydberg constant α and time-varying Quantity Q that is, in fact, a measure of the Worlds' curvature in the fourth spatial dimension of the Nucleus and the Age of the World. In our opinion, constant α and quantity Q should be named "Universe Constant" and "World Parameter" respectively.
WUM does not attempt to explain all available cosmological data, as that is an impossible feat for any one manuscript. Nor does WUM pretend to have built an all-encompassing theory that can be accepted as is. The Model needs significant further elaboration, but in its present shape, it can already serve as a basis for a new Physics proposed by Paul Dirac in 1937. The Model should be developed into the well-elaborated theory by all physical community.