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15 Evidences That the Scope of Special/General Relativity Is Limited

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26 October 2024

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30 October 2024

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Abstract
Today’s physics describes nature in “subjective concepts” (concepts of observers), such as spatial, temporal, wave, particle, force, field. There are coordinate-free formulations of special and general relativity (SR/GR), but there is no absolute time in SR/GR. Thus, there is no “holistic view” (a view that is universal for all objects at the same instant in time) in SR/GR. I show: Euclidean relativity (ER) provides a holistic view by describing nature in “objective concepts” (concepts that are immanent in all objects). “Pure distance” replaces spatial and temporal distance. “Pure energy” replaces wave and particle. I give one example where “process” replaces force and field. Each object’s proper space and its proper time span an absolute, Euclidean spacetime (ES), where and are pure distances. The new invariant is absolute, cosmic time . All energy moves through ES at the speed . An observer’s reality is created by orthogonally projecting ES to his proper space and to his proper time. These two projections are reassembled in SR/GR to a non-Euclidean spacetime. Information is lost in all projections. Thus, there will always be unsolved mysteries if we ignore ES. ER solves 15 mysteries, including the Hubble tension! On top, ER declares four concepts obsolete, such as dark energy and non-locality. I conclude: SR/GR describe an observer’s reality. ER describes the “master reality” ES. Objective concepts are mandatory in cosmology and in quantum mechanics. Thus, the scope of SR/GR is limited—just as the scope of Newton’s physics is limited.
Keywords: 
Subject: Physical Sciences  -   Theoretical Physics
There are two legitimate approaches to describing nature: either in “subjective concepts” (concepts of observers) or in “objective concepts” (concepts that are immanent in all objects). Subjective is what I observe. Objective is what all instruments measure. Special and general relativity (SR/GR) take the first approach [1,2], but they do not provide a “holistic view” (a view that is universal for all objects at the same instant in time). In SR/GR, there is no absolute time and thus no same instant in time. Euclidean relativity (ER) takes the second approach and provides a holistic view. Editors of top journals told me: All physical theories must build upon SR/GR. They are mistaken because I disclose an issue in SR/GR. Physics must either disprove or accept ER. Here is my key message: Subjectively, we live in a non-Euclidean spacetime. Objectively, we live in a Euclidean spacetime.
Ten pieces of advice: (1) Read carefully. I do not (!) claim that SR/GR are false. I show that the scope of SR/GR is limited. (2) Do not reject ER unless you can disprove it. No one has disproven ER yet. The incompatibility of SR/GR and ER is no disproof. It reflects that these theories describe different realities. (3) Honor the existing evidence. ER solves 15 mysteries. (4) Do not evaluate ER with the concepts of SR/GR. We must not compare the incomparable. (5) Do not confuse spacetime in ER with spacetime in SR/GR. One peer reviewer claimed that my Euclidean diagrams must be false because spacetime is non-Euclidean in SR/GR. He is mistaken! This is as if he claimed that the heliocentric model must be false because the sun orbits Earth in the geocentric model. (6) Do not pigeonhole ER. While it is true that many theories of spacetime have failed, we must not automatically reject all theories. (7) Do not be prejudiced against a simple and powerful theory. Nature often realizes simple symmetries. (8) Appreciate illustrations. As a geometric theory, ER complies with the stringency of math. (9) Be fair. I cannot cover all of physics. SR/GR have been tested for 100+ years. ER deserves the same chance. (10) Consider that you may be biased. Experts may feel offended.
To sum it up: Predictions made by SR/GR are correct, but cosmology and quantum mechanics (QM) significantly profit from ER. I apologize for my many preprint versions, but I received almost no support. My final version is all that is needed. The earlier versions are documents that illustrate my path. It was tricky to figure out why SR/GR work so well despite an issue. Section 2 is about this issue. Section 3 describes ER. Section 4 describes geometric effects in ER. In Section 5, I outline the solutions to 15 fundamental mysteries.

1. Introduction

Today’s concepts of space and time were coined by Albert Einstein. In SR, space and time are merged into a flat spacetime described by the Minkowski metric. SR is often presented in Minkowski space time [3]. Predicting the lifetime of muons [4] is one example that supports SR. In GR, a curved spacetime is described by the Einstein tensor. The deflection of starlight [5] and the high accuracy of GPS [6] are two examples that support GR. Quantum field theory [7] unifies classical field theory, SR, and QM—but not GR.
The three postulates of ER: (1) All energy moves through Euclidean spacetime (ES) at the speed of light c . (2) All laws of physics have the same form in each observer’s reality. (3) An observer’s reality is created by orthogonally projecting ES to his proper space and to his proper time. These two projections are reassembled in SR/GR to a non-Euclidean spacetime. The reassembly is not (!) a topic of my paper. It is a fact that spacetime in SR/GR is non-Euclidean. Information is lost in all projections. Thus, there will always be unsolved mysteries if we ignore ES. My first postulate is stronger than the second SR postulate: c  is absolute and universal. My second postulate refers to realities and not to inertial frames. My third postulate is unique. I also use objective concepts: “Pure distance” replaces spatial and temporal distance. “Pure energy” replaces wave and particle. To improve readability, all my observers are male. To make up for it, Mother Nature is female.
Since each observer’s reality is created by projecting ES, I call ES the “master reality”. Figure 1 left illustrates how to relate an observer’s reality to ES. Figure 1 right illustrates where to apply SR/GR and where to apply ER. SR/GR describe an observer’s reality and also how the realities of two observers relate to each other. ER describes the master reality ES, which is “beyond” (outside the scope of) an observer’s reality, and also how an observer’s reality is created. Note that ER describes nature but not an observer’s reality.
In 1969, Newburgh and Phipps [8] pioneered ER. Montanus [9] added a constraint: A pure time interval is a pure time interval for all observers. According to Montanus [10], this constraint is required to avoid the twin paradox and a “character paradox” (confusion of photons, particles, antiparticles). I show that the constraint is obsolete. Whatever is proper time for me, it may be one axis of proper space for you. There is no twin paradox if we consider cosmic time as the parameter. There is no character paradox if we consider “pure energy”. Montanus [11] tried to describe kinematics in ES using the Lagrange formalism. Montanus [[10]] even tried to formulate Maxwell’s equations in ES but wondered about a wrong sign. He overlooked that the SO(4) symmetry of ES is incompatible with waves. Nevertheless, Montanus [10] calculated the precession of Mercury’s perihelion in ER. In short, ER makes the same predictions as SR/GR but excludes subjective concepts, such as waves.
Almeida [12] studied various geodesics in ES. Gersten [13 ] showed that the Lorentz transformation is an SO(4) rotation (see Section 3). van Linden maintains a website about ER (https://euclideanrelativity.com/). Most physicists reject ER because dark energy and non-locality make cosmology and QM work, ER excludes waves, and paradoxes turn up if ER is believed to describe an observer’s reality. This paper marks a turning point: I disclose an issue in SR/GR. I justify the exclusion of waves. I avoid paradoxes by projecting ES.
It is instructive to contrast Newton’s physics, Einstein’s physics, and ER. In Newton’s physics, all energy moves through 3D Euclidean space as a function of independent time. There is no speed limit for matter. In Einstein’s physics, all energy moves through a non-Euclidean spacetime. The 3D speed of matter is v 3 D < c . In ER, all energy moves through ES. The 4D speed of all energy is c . Newton’s physics [14 ] shaped Kant’s philosophy [15]. I am convinced that ER will trigger a reformation of both physics and philosophy.

2. Disclosing an Issue in Special and General Relativity

The fourth coordinate in SR is an observer’s coordinate time t . In § 1 of SR, Einstein gives an instruction for synchronizing clocks at the points P and Q. At t P , a light pulse is sent from P to Q. At t Q , it is reflected at Q. At t P * , it is back at P. The clocks synchronize if
t Q − t P   =   t P * − t Q
In § 3 of SR, Einstein derives the Lorentz transformation. The coordinates x 1 ,   x 2 ,   x 3 ,   t of an event in a system K are transformed to the coordinates x 1 ' ,   x 2 ' ,   x 3 ' ,   t ' in K’ by
x 1 '   =   γ   ( x 1 − v 3 D   t )
x 2 '   =   x 2   ,   x 3 '   =   x 3
t '   =   γ   ( t − v 3 D   x 1 / c 2 )
where K’ moves relative to K in x 1 at the constant speed v 3 D and γ = ( 1 − v 3 D 2 / c 2 ) − 0.5 is the Lorentz factor. Mathematically, Equations (1) and (2a–c) are correct for observers in K. There are covariant equations for observers in K’. Physically, there is an issue in SR and in GR: The subjective concepts of SR/GR fail to solve fundamental mysteries. I do not claim that SR/GR are false. I show that the scope of SR/GR is limited—just as the scope of Newton’s physics is limited. There are coordinate-free formulations of SR [16] and GR [17], but there is no absolute time in SR/GR. Thus, there is no “holistic view” (I repeat my definition: a view that is universal for all objects at the same instant in time) in SR/GR. The view in SR/GR is egocentric. Even all observers’ views taken together do not make a holistic view because they still do not provide absolute time. Without absolute time, observers will not always agree on what is past and what is future. Physicists paid an enormous price for dismissing absolute time: ER restores absolute time (see Section 3) and solves 15 fundamental mysteries (see Section 5). Thus, the issue in SR/GR is not a hypothesis but real.
The issue in SR/GR is not about making wrong predictions. It has much in common with the issue in the geocentric model: In either case, there is no holistic view. Geocentrism is the egocentric view of mankind. In the old days, it was natural to believe that all celestial bodies would orbit Earth. Only the astronomers wondered about the retrograde loops of planets and claimed that Earth orbits the sun. In modern times, engineers have improved rulers and clocks. Today, it is natural to believe that it would be fine to describe nature as accurately as possible but in the subjective concepts of one or more observers. The human brain is smart, but it often takes itself as the center/measure of everything.
The analogy of SR/GR to the geocentric model is stunningly close: (1) It holds despite all covariances. After a transformation in SR/GR (or after appointing another planet as the center of the Universe), the perspective is again egocentric (or else geocentric). (2) ER has much in common with a “heliocentric model 2.0”, where the sun is the center of our solar system but not of our galaxy. That particular model provides a holistic view from beyond our galaxy. ER provides a holistic view from beyond an observer’s reality. (3) Retrograde loops make the geocentric model work, but they are obsolete in the heliocentric model. Dark energy and non-locality make cosmology and QM work, but they are obsolete in ER (see Section 5). (4) The heliocentric model was rejected in the old days. ER is rejected today. Have physicists not learned from history? Does history repeat itself?

3. The Physics of Euclidean Relativity

The Minkowski metric in SR is often written as
c 2   d τ 2   =   c 2   d t 2 − d x 1 2 − d x 2 2 − d x 3 2
where d τ is an infinitesimal distance in proper time τ , whereas d t and d x i ( i = 1 ,   2 ,   3 ) are infinitesimal distances in coordinate spacetime x 1 ,   x 2 ,   x 3 ,   t . This spacetime is construed because coordinate space x 1 ,   x 2 ,   x 3 and coordinate time t are subjective concepts: They are not immanent in rulers/clocks but are construed by observers. Rulers measure proper length. Clocks measure proper time. I introduce ER by defining its metric
c 2   d θ 2 = d d 1 2 + d d 2 2 + d d 3 2 + d d 4 2
where d θ is an infinitesimal distance in cosmic time θ , whereas all d d i ( i = 1 ,   2 ,   3 ) and d d 4 = c   d τ are infinitesimal distances in Euclidean spacetime d 1 ,   d 2 ,   d 3 ,   d 4 (ES). The roles of θ and τ are switched: The new invariant is absolute, cosmic time θ . The fourth coordinate is an object’s proper time τ . The metric tensor is the identity matrix. I prefer the indices 1–4 to 0–3 to stress the 4D symmetry. I choose the symbol θ because the initial of “theta” is “t”. Each object’s proper space d 1 ,   d 2 ,   d 3 and its proper time τ span ES, where d 1 ,   d 2 ,   d 3 and d 4 = c τ are pure distances. This spacetime is natural because all d μ ( μ = 1 ,   2 ,   3 ,   4 ) are objective concepts: They are immanent in rulers/clocks (they are measured!). Do not confuse Equation (4) with a Wick rotation [18], where coordinate time is imaginary.
Each object is free to label the axes of ES. We assume that it labels the axis of its current 4D motion as d 4 . Since it does not move in its proper space, it moves in the d 4 axis at the speed c (my first postulate). Because of length contraction at the speed c (see Section 4), the d 4 axis disappears for itself and is experienced as proper time. Objects moving in the d 4 ' axis at the speed c experience the d 4 ' axis as proper time. Each object experiences its own 4D motion as proper time. In other words: An object’s proper time flows in the direction of its 4D motion. Thus, there is a relative 4D vector “flow of proper time” τ .
τ   =   d 4 / c   ,   τ '   =   d 4 ' / c
τ   =   d 4   u / c 2   ,   τ '   =   d 4 '   u ' / c 2
where u is an object’s 4D velocity in ES. There is u μ = d d μ / d θ , where θ is cosmic time. Watch out: Speed is not a spatial coordinate divided by the fourth coordinate but any coordinate divided by the invariant. Thus, Equation (4) is not some random metric but my first postulate
u 1 2 + u 2 2 + u 3 2 + u 4 2   =   c 2
An observer’s reality is created by orthogonally projecting ES to his proper space and to his proper time. Information is lost in all projections. Thus, there is no continuous transition from SR to ER. An observer’s reality can be construed from ES but not vice versa. This is not an issue because SR describes nature subjectively in x 1 ( τ ) ,   x 2 ( τ ) ,   x 3 ( τ ) , t ( τ ) , where τ is the parameter and t is coordinate time. ER, on the other hand, describes nature objectively in d 1 ( θ ) ,   d 2 ( θ ) ,   d 3 ( θ ) ,   d 4 ( θ ) , where θ is the parameter and d 4 relates to τ . Only in proper coordinates can we access ES, but the proper coordinates of other objects cannot be measured. This is not an issue either as I explain in my Conclusions.
It is instructive to contrast the three concepts of time. Coordinate time t is a subjective measure of time: An observer uses his clock as the master clock. Proper time τ is an objective measure of time: Clocks measure τ independently of observers. Cosmic time θ is the total distance covered in ES (length of a worldline) divided by c . By taking θ as the parameter, all observers will agree on what is past and what is future. Since cosmic time is absolute, there is no twin paradox in ER. Twins are the same age in cosmic time.
Let us compare SR with ER. We consider two identical clocks “r” (red clock) and “b” (blue clock). In SR, “r” moves in the c t axis. Clock “b” starts at x 1 = 0 and moves in the x 1 axis at a constant speed of v 3 D = 0.6   c . Figure 2 left shows the instant when either clock moved 1.0 s in c t . Clock “b” moved 0.6 Ls (light seconds) in x 1 and 0.8 Ls in c t ' . It displays “0.8”. In ER, Figure 2 right shows the instant when either clock moved 1.0 s in its proper time. Both clocks display “1.0”. Clock “b” moved 0.6 Ls in d 1 and 0.8 Ls in d 4 .
We now assume that an observer R (or B) is moving with the clock “r” (or else “b”). In SR and only from R’s perspective, clock “b” is at c t ' = 0.8   L s when “r” is at c t = 1.0   L s (see Figure 2 left). Thus, “b” is slow with respect to “r” in t ' (of B). In ER and independently of observers, clock “b” is at d 4 = 0.8   L s when “r” is at d 4 = 1.0   L s (see Figure 2 right). Thus, “b” is slow with respect to “r” in d 4 (of R). In SR and ER, “b” is slow with respect to “r”, but time dilation occurs in different axes. Experiments do not disclose the axis in which a clock is slow. Thus, SR and ER may claim that they describe time dilation correctly.
But why does ER provide a holistic view? Well, ES is independent of observers and thus absolute. This justifies the name “master reality”. Only the projections are relative. Absolute ES shows up in its rotational symmetry: Figure 2 right works for R and for B “at once” (at the same instant in cosmic time!), that is, it provides a universal view. The view in Figure 2 left is not universal because a second Minkowski diagram is required for B, where x 1 ' and c t ' are orthogonal. Absolute ES shows up in Equation (4) too: All four d μ ( μ = 1 ,   2 ,   3 ,   4 ) are interchangeable. Only observers experience distance as spatial or temporal.
Gersten [13] showed that the Lorentz transformation is an SO(4) rotation in a “mixed space” x 1 ,   x 2 ,   x 3 ,   c t ' , where only c t ' is primed. The four mixed coordinates x 1 ,   x 2 ,   x 3 ,   c t ' rotate to x 1 ' ,   x 2 ' ,   x 3 ' ,   c t . I will not repeat the derivation. I consider it my task to turn ER into an accepted theory by revealing its power. However, a mixed space is physically pointless. In ER, unmixed d 1 ' ,   d 2 ' ,   d 3 ' ,   d 4 ' rotate with respect to d 1 ,   d 2 ,   d 3 ,   d 4 (see Section 4).
There is also a big difference in the synchronization of clocks: In SR, each observer is able to synchronize a uniformly moving clock to his clock (same value of c t in Figure 2 left). If he does, these clocks are not synchronized from the perspective of the moving clock. In ER, clocks with the same 4D vector τ are always synchronized, whereas clocks with different τ and τ ' are never synchronized (different values of d 4 in Figure 2 right).

4. Geometric Effects in Euclidean Relativity

We consider two identical rockets “r” (red rocket) and “b” (blue rocket). Let observer R (or B) be in the rear end of “r” (or else “b”). The 3D space of R (or B) is spanned by d 1 ,   d 2 ,   d 3 (or else d 1 ' ,   d 2 ' ,   d 3 ' ). We use “3D space” as a synonym of “proper space”. The proper time of R (or B) relates to d 4 (or else d 4 ' ) according to Equation (5). Both rockets start at the point P and move relative to each other at the constant speed v 3 D . R and B are free to label the axis of relative motion in 3D space. R (or B) labels it as d 1 (or else d 1 ' ). The ES diagrams in Figure 3 must fulfill my three postulates and the initial condition (same starting point P). This is achieved by rotating the red and the blue frame with respect to each other. Do not confuse the ES diagrams with Minkowski diagrams. In ES diagrams, objects maintain proper length and clocks display proper time. To improve readability, these diagrams show a rocket’s width in d 4 (or d 4 ' ). Figure 3 bottom shows the projection to the 3D space of R (or B).
Up next, we verify: (1) Rotating the red and the blue frame with respect to each other causes length contraction. (2) The fact that proper time flows in different 4D directions for R and for B causes time dilation. Let L i , j be the length of the rocket i for the observer j . In a first step, we project the blue rocket in Figure 3 top left to the d 1 axis.
sin 2 ⁡ φ + cos 2 ⁡ φ   =   ( L b , R / L b , B ) 2 + ( v 3 D / c ) 2   =   1
L b , R   =   γ − 1   L b , B           ( length   contraction ) ,
where γ = ( 1 − v 3 D 2 / c 2 ) − 0.5 is the same Lorentz factor as in SR. For R, rocket “b” contracts to L b , R . We now ask: Which distances will R observe in d 4 ? We continue the rotation of rocket “b” until φ = 0 , that is, until “b” serves as a ruler for R in d 4 . In his 3D space, this ruler contracts to a point: The d 4 axis disappears for R because of length contraction at the speed c . In a second step, we project the blue rocket in Figure 3 top left to the d 4 axis.
sin 2 ⁡ φ + cos 2 ⁡ φ   =   ( d 4 , B / d 4 , B ' ) 2 + ( v 3 D / c ) 2   =   1
d 4 , B   =   γ − 1   d 4 , B '
where d 4 , B (or d 4 , B ' ) is the distance that B moved in d 4 (or else d 4 ' ). With d 4 , B ' = d 4 , R (R and B cover the same distance in ES but in different directions), we calculate
d 4 , R   =   γ   d 4 , B         ( time   dilation ) ,
where d 4 , R is the distance that R moved in d 4 . Equations (9) and (12) tell us: γ is recovered in ER if we project ES to the axes d 1 and d 4 of an observer. The rockets serve as an example. All other objects are projected the same way to an observer’s reality. For an overview of orthogonal projections, the reader is referred to geometry textbooks [19,20].
Up next, we transform the proper coordinates of observer R to those of B. We recall that R (or B) is in the rear end of rocket “r” (or else “b”). We refer to Figure 3 again, but we now calculate the 4D motion of R and of B as a function of the parameter θ . R and B start at the point P. The starting time is θ 0 . R cannot measure the proper coordinates of B, and vice versa, but we can calculate them all from the ES diagrams in Figure 3.
d 1 , R θ   =   d 1 , R ( θ 0 )
d 2 , R θ   =   d 2 , R ( θ 0 )   ,   d 3 , R θ   =   d 3 , R ( θ 0 )
d 4 , R θ   =   d 4 , R θ 0 + c   ( θ − θ 0 )
d 1 , B ' θ   =   d 1 , B ' ( θ 0 )
d 2 , B ' θ   =   d 2 , B ' ( θ 0 )   ,   d 3 , B ' θ   =   d 3 , B ' ( θ 0 )
d 4 , B ' θ   =   d 4 , B ' θ 0 + c   ( θ − θ 0 )
To transform the proper coordinates of R (unprimed) to the proper coordinates of B (primed), we have to take the angle 90 0 − φ into account (see Figure 3 top right).
d 1 , R ' θ   =   d 4 , R θ   cos ⁡ φ   =   d 4 , R θ     v 3 D / c
d 2 , R ' θ   =   d 2 , R ( θ )   ,   d 3 , R ' θ   =   d 3 , R ( θ )
d 4 , R ' θ   =   d 4 , R θ   sin ⁡ φ   =   d 4 , R θ     γ − 1
To understand how an acceleration manifests itself in ES, we return to our two clocks. Clock “r” and Earth move in the d 4 axis of “r” at the speed c (see Figure 4), but clock “b” accelerates in the d 1 axis of “r” toward Earth while maintaining the speed c . Because of Equation (7), the speed u 1 , b of “b” in d 1 increases at the expense of its speed u 4 , b in d 4 .
Gravitational waves [21] support the idea of GR that gravity is a feature of spacetime. In ER, the SO(4) symmetry of ES is incompatible with waves. This is fine because wave is a subjective concept and thus described by SR/GR. However, an objective concept of force and field has yet to be defined which manifests itself as gravity or as another force in an observer’s reality. A promising concept that replaces force and field is “process”. Typical processes are the transfer of energy or momentum [22]. As an example, we now recover gravitational time dilation in ER. We consider the process “transfer of potential energy to kinetic energy”. Initially, our clocks “r” and “b” are very far away from Earth. Eventually, “b” falls freely toward Earth (see Figure 4). The kinetic energy of “b” in d 1 is
1 2 m u 1 , b 2   =   G M m / R
where m is the mass of “b”, G is the gravitational constant, M is the mass of Earth, and R is the distance of “b” to Earth’s center. By applying Equation (7), we obtain
u 4 , b 2   =   c 2 − u 1 , b 2   =   c 2 − 2 G M / R
With u 4 , b = d d 4 , b / d θ (“b” moves in the d 4 axis at the speed u 4 , b ) and c = d d 4 , r / d θ (“r” moves in the d 4 axis at the speed c ), we calculate
d d 4 , b 2   =   ( c 2 − 2 G M / R )   ( d d 4 , r / c ) 2
d d 4 , r   =   γ g r   d d 4 , b ( gravitational   time   dilation ) ,
where γ g r = ( 1 − 2 G M / ( R c 2 ) ) − 0.5 is the same dilation factor as in GR. Equation (19) tells us: γ g r is recovered in ER if we project ES to the d 4 axis of an observer. Since “field” is a subjective concept, we must not expect to face field equations in ER. More studies are required to confirm “process” as the objective concept of force and field.
Summary of time dilation: In SR, a uniformly moving clock “b” is slow with respect to “r” in the time dimension of “b”. In GR, an accelerating clock “b” or a clock “b” in a stronger gravitational field is slow with respect to “r” in the time dimension of “b”. In ER, a clock “b” is slow with respect to “r” in the time dimension of “r” (!) if the 4D vectors τ of “r” and τ ' of “b” are not the same. Since both dilation factors γ and γ g r are recovered in ER, the results of the Hafele–Keating experiment [23] do not only support SR/GR but also ER. Thus, GPS satellites work in ER as well as in SR/GR.
Three instructive problems teach us how to read ES diagrams correctly (see Figure 5). Problem 1: In billiards, the blue ball is approaching the red ball. In ES, both balls move at the speed c . Let the red ball move in its d 4 axis. As the blue ball covers distance in d 1 , its speed in d 4 must be less than c . How can the balls ever collide if their d 4 values do not match? Problem 2: A rocket moves along a guide wire. In ES, both objects move at the speed c . Let the wire move in its d 4 axis. As the rocket covers distance in d 1 , its speed in d 4 must be less than c . Doesn’t the wire escape from the rocket? Problem 3: Earth orbits the sun. In ES, both objects move at the speed c . Let the sun move in its d 4 axis. As Earth covers distance in d 1 ,   d 2 , its speed in d 4 must be less than c . Doesn’t the sun escape from Earth?
The questions in the last paragraph seem to disclose geometric paradoxes in ER. The fallacy lies in the assumption that all four dimensions of ES would be spatial. We solve all problems by projecting ES to the 3D space of the object that moves in d 4 at the speed c . In its 3D space, it is at rest. We see the solutions in the ES diagrams, too, if we read them correctly: In Figure 5 left, “r” and “b” collide if d i , r = d i , b ( i = 1 ,   2 ,   3 ) and if the same proper time has elapsed for both balls ( d 4 , r = d 4 , b ' ). Thus, a collision in 3D space does not show up as a collision in ES. This is reasonable because only three axes of ES are experienced as spatial. For the same reason, the sun does not spatially escape from Earth, but their proper times flow in different directions. Do not confuse Euclidean spacetime (ES) with Euclidean 4D space. Only in the latter would the sun and Earth be casually disconnected.

5. Outlining the Solutions to 15 Fundamental Mysteries

We recall: (1) An observer’s reality is a projection from ES. (2) Cosmic time θ is the correct parameter for a holistic view. In Section 5.1 through 5.15, I outline the solutions to 15 fundamental mysteries and declare four concepts of today’s physics obsolete.

5.1. The Mystery of Time

Proper time τ is what clocks measure ( d 4 divided by c ). Cosmic time θ is the total distance covered in ES (length of a worldline) divided by c . An observer’s clock always displays both quantities: his proper time and cosmic time. If he observes someone else’s clock, his 4D vector τ may be different from the observed clock’s 4D vector τ ' .

5.2. The Mystery of Time’s Arrow

Time’s arrow is a synonym for “time moving only forward”. The arrow emerges from the fact that covered distance ( d 4 or total distance) cannot decrease but only increase.

5.3. The Mystery of the Factor c 2 in the Energy Term m c 2

In SR, if forces are absent, the total energy E of an object is given by
E   =   γ m c 2   =   E k i n , 3 D + m c 2
where E k i n , 3 D is its kinetic energy in an observer’s 3D space and m c 2 is called its “energy at rest”. SR does not tell us why there is a factor c 2 in the energy of objects that in SR do not move at the speed c . ER gives us the missing clue: The object is never at rest but moves in its d 4 ' axis. From the object’s perspective, E k i n , 3 D is zero and m c 2 is its kinetic energy in d 4 ' . The factor c 2 is a hint that it moves through ES at the speed c . In SR, there is
E 2   =   p 2   c 2   =   p 3 D 2   c 2 + m 2   c 4
where p is the total momentum of an object and p 3 D is its momentum in an observer’s 3D space. Again, ER is eye-opening: From the object’s perspective, p 3 D is zero and m c is its momentum in d 4 ' . The factor c is a hint that it moves through ES at the speed c .

5.4. The Mystery of Length Contraction and Time Dilation

In SR, length contraction and time dilation can be traced back to Einstein’s instruction for synchronizing clocks, but this is just a measurement instruction. ER discloses that they stem from projecting absolute ES to the axes d 1 and d 4 of an observer.

5.5. The Mystery of Gravitational Time Dilation

In GR, gravitational time dilation stems from a curved spacetime. ER discloses that it stems from projecting curved worldlines in flat ES to the d 4 axis of an observer. Equation (7) tells us: If an object accelerates in an observer’s proper space, it automatically decelerates in his proper time. More studies are required to understand other gravitational effects in ER.

5.6. The Mystery of the Cosmic Microwave Background (CMB)

In Section 5.6 through 5.12, I outline an ER-based model of cosmology. As a mathematical manifold, ES is timeless like numbers. In particular, ES is not inflating/expanding. For some reason, there was a Big Bang. In the inflationary Lambda-CDM model, the Big Bang occurred “everywhere” (space inflated from a singularity). In the ER-based model, the Big Bang is locatable: A huge amount of energy was injected into ES at an “origin O”. Cosmic time θ is the total time that has elapsed since the Big Bang. At θ = 0 , all available energy started moving radially away from O. The Big Bang was a singularity in providing energy and radial momentum. Shortly after θ = 0 , pure energy (objective concept, see Section 5.13) was highly concentrated. In any 3D space, plasma particles (subjective concept) were created. Recombination radiation was emitted that we still observe as CMB today [24].
The ER-based model must be able to answer these questions: (1) Why is the CMB so isotropic? (2) Why is the temperature of the CMB so low? (3) Why do we still observe the CMB today? Here are some possible answers: (1) The CMB is so isotropic because it has been scattered equally in the 3D space d 1 , d 2 , d 3 of Earth. (2) The temperature of the CMB is so low because the plasma particles had a very high recession speed v 3 D (see Section 5.7) shortly after θ = 0 . (3) We still observe the CMB today because it reaches Earth after having covered the same distance in d 1 ,   d 2 ,   d 3 (multiple scattering) as Earth in d 4 .

5.7. The Mystery of the Hubble–Lemaître Law

In Figure 6 left, Earth and a galaxy G recede from the origin O of ES. In Earth’s 3D space, G recedes from Earth at the 3D speed v 3 D . According to my first postulate, v 3 D relates to the 3D distance D of G to Earth as c relates to the radius r of a 4D hypersphere.
v 3 D   =   D   c / r   =   H θ   D
where H θ = c / r = 1 / θ is the Hubble parameter. If we observe G today at the cosmic time θ 0 , the recession speed v 3 D and c remain unchanged. Thus, Equation (22) turns into
v 3 D   =   D 0   c / r 0   =   H 0   D 0
where H 0 = c / r 0 = 1 / θ 0 is the Hubble constant, D 0 = D   r 0 / r is today’s 3D distance of G to Earth, and r 0 is today’s radius of the 4D hypersphere. Equation (23) is the Hubble–Lemaître law [25,26]. Cosmologists are aware of the Hubble parameter and of the quantity “cosmic time”. They are not aware yet that the 4D geometry is Euclidean, that Equation (23) relates v 3 D to D 0 and not to D , and that there is no acceleration. Out of any two galaxies, the one that is farther away recedes faster, but each galaxy maintains its 3D speed v 3 D .

5.8. The Mystery of the Flat Universe

For each observer, ES is orthogonally projected to his proper space and to his proper time. Thus, he experiences two seemingly discrete structures: flat 3D space and time.

5.9. The Mystery of Cosmic Inflation

Many cosmologists [27,28] believe that an inflation of space shortly after the Big Bang explains the isotropic CMB, the flat universe, and large-scale structures. The latter inflated from quantum fluctuations. I just showed that ER explains the first two effects. ER even explains large-scale structures if the impacts of quantum fluctuations have been expanding like the 4D hypersphere. In ER, cosmic inflation is an obsolete concept.

5.10. The Mystery of Cosmic Homogeneity (Horizon Problem)

How can the universe be so homogeneous if there are casually disconnected regions of space? In the Lambda-CDM model, a region A at x 1 = + r 0 and a region B at x 1 = − r 0 are casually disconnected unless we postulate a cosmic inflation. Without it, information could not have covered 2 r 0 since the Big Bang. ER solves the problem without a cosmic inflation: In Figure 6 left, A is at d 1 = + r 0 and B is at d 1 = − r 0 (not shown). From A’s or B’s perspective, their d 4 ' axis (equal to Earth’s d 1 axis) disappears because of length contraction at the speed c . A and B are casually connected because they overlap spatially in either reality. Their opposite 4D vectors + τ ' and − τ ' do not affect casual connectivity.

5.11. The Mystery of the Hubble Tension

Up next, I explain why the published values of the Hubble constant H 0 do not match each other (also known as the “Hubble tension”). I compare CMB measurements (Planck space telescope) with calibrated distance ladder measurements (Hubble space telescope). According to team A [29], there is H 0 = 67.66 ± 0.42   k m / s / M p c . According to team B [30], there is H 0 = 73.04 ± 1.04   k m / s / M p c . Team B made efforts to minimize the error margins in the distance measurements. However, there is a systematic error in team B’s calculation of H 0 , which arises from assuming a wrong cause of the redshifts.
We assume that team A’s value of H 0 is correct. We simulate the supernova of a star S that occurred at a distance of D = 400   M p c from Earth (see Figure 6 right). The recession speed v 3 D of S is calculated from measured redshifts. The redshift parameter z = Δ λ / λ tells us how each wavelength λ of the supernova’s light is either stretched by an expanding space (team B) or else Doppler-redshifted by receding objects (ER-based model). The supernova occurred at the cosmic time θ (arc called “past”), but we observe it at the cosmic time θ 0 (arc called “present”). While the supernova’s light moved the distance D in d 1 , Earth moved the same distance D but in d 4 (my first postulate). There is
1 / H θ   =   r / c   =   ( r 0 − D ) / c   =   1 / H 0 − D / c
For a very short distance of D = 400   k p c , Equation (24) tells us that H θ deviates from H 0 by only 0.009 percent. When plotting v 3 D versus D for distances from 0 Mpc to 500 Mpc in steps of 25 Mpc (red points in Figure 7), the slope of a straight-line fit through the origin is roughly 10 percent greater than H 0 . Since team B calculates H 0 from relating z to magnitude, which is like plotting v 3 D versus D , its value of H 0 is roughly 10 percent too high. This solves the Hubble tension. Team B’s value is not correct because, according to Equation (23), we must plot v 3 D versus D 0 (!) to get a straight line (blue points in Figure 7).
Since we cannot measure D 0 (observable magnitudes relate to D and not to D 0 ), the easiest way to fix the calculation of team B is to rewrite Equation (23) as
v 3 D , 0   =   D   c / r 0   =   H 0   D
where v 3 D , 0 is today’s 3D speed of another star S 0 (see Figure 6 right) that happens to be at the same distance D today at which the supernova of star S occurred. I kindly ask team B to recalculate H 0 after converting all v 3 D to v 3 D , 0 . To perform this conversion, we only have to combine Equation (24) with Equation (25) and then with Equation (22). This gives us
H θ   =   H 0   c / ( c − H 0   D )   =   H 0 / ( 1 − v 3 D , 0 / c )
v 3 D , 0   =   v 3 D / ( 1 + v 3 D / c )
By applying Equation (27) and plotting v 3 D , 0 versus D , all red points in Figure 7 drop down to the blue points. However, Figure 7 does not only solve the Hubble tension. The figure also tells us: The more high-redshift data are included in team B’s calculation, the more data deviate from the straight line with the slope H 0 , and the more the H 0 tension increases. The moment of the supernova is irrelevant to team B’s calculation of H 0 . All that counts in the Lambda-CDM model is the duration of the light’s journey to Earth. The parameter z continuously increases during the journey. In the ER-based model, all that counts is the moment of the supernova. Each wavelength is initially redshifted by the Doppler effect. The parameter z remains constant during the journey. It was specified at the moment of the supernova. Space is not expanding. Rather, energy is receding from the location of the Big Bang (origin O of ES). In ER, expanding space is an obsolete concept.

5.12. The Mystery of Dark Energy

Team B can fix the systematic error in its calculation of H 0 by converting all v 3 D to v 3 D , 0 according to Equation (27). I now reveal another systematic error, but it is inherent in the Lambda-CDM model. It stems from assuming an accelerating expansion of space and can be fixed only by replacing this model with the ER-based model unless we postulate a dark energy. Many cosmologists [31,32] believe in an accelerating expansion because the calculated recession speeds v 3 D deviate from a straight line in the Hubble diagram (if v 3 D is plotted versus D ) and because the deviations increase with D . An accelerating expansion would indeed stretch each wavelength even further and explain the deviations.
In ER, the explanation of the deviations is less speculative: The older the redshift data are, the more H θ deviates from H 0 , and the more v 3 D deviates from v 3 D , 0 . If another star S 0 (see Figure 6 right) happens to be at the same distance of D = 400   M p c today at which the supernova of star S occurred, Equation (27) tells us: S 0 recedes more slowly (27,064 km/s) from Earth than S (29,750 km/s). It does so because of the geometry. As long as cosmologists are not aware that the 4D geometry is Euclidean, they hold dark energy [33] responsible for an accelerating expansion of space. Dark energy has not been confirmed. It is a stopgap for an effect that the Lambda-CDM model cannot explain. Older supernovae recede faster not because of an accelerating expansion but because of a larger H θ in Equation (22).
The Hubble tension and dark energy are solved exactly the same way: In Equation (23), we must not confuse D 0 with D . Because of Equation (22) and because of H θ = c / ( r 0 − D ) , the recession speed v 3 D is not proportional to D but to D / ( r 0 − D ) . This is why the red points in Figure 7 run away from a straight line. Any expansion of space (uniform or accelerating) is only virtual. There is no accelerating expansion of space even if the Nobel Prize in Physics 2011 was given “for the discovery of the accelerating expansion of the Universe through observations of distant supernovae”. This particular prize was given for something that does not really exist. In the Lambda-CDM model, the word “Universe” implies space, but space is not expanding. Most galaxies do recede from Earth, yet they do so uniformly in a non-expanding ES. In ER, dark energy is an obsolete concept.
This casts doubt on the Lambda-CDM model but not on GR. Galaxies are driven by their momentum. Shortly after θ = 0 , all energy moved radially away from the origin O. Because of physical interactions, some energy accelerated transversally while maintaining the speed c . This is why some galaxies move toward Earth today. In Table I, two models of cosmology are compared. Note that “Universe” and “universe” are not the same thing. Observers may experience different “universes”. In Section 5.6 through Section 5.12, objective concepts improve cosmology. In Section 5.13 and Section 5.14, they also prove useful in QM.
Table 1. Comparing two different models of cosmology.
Table 1. Comparing two different models of cosmology.
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5.13. The Mystery of the Wave–Particle Duality

The wave–particle duality was first discussed by Niels Bohr and Werner Heisenberg [34] and has bothered physicists ever since. Electromagnetic waves are oscillations of an electromagnetic field, which propagate through an observer’s 3D space at the speed c . In some experiments, objects behave like waves. In other experiments, the very same objects behave like particles (also known as the “wave–particle duality”). In today’s physics, one object cannot be wave and particle at once because the energy of a wave is distributed in space, whereas the energy of a particle is always localized in space.
In order to solve the duality, we use two objective concepts: “Pure distance” replaces spatial and temporal distance. “Pure energy” replaces wave and particle. My neologism “wavematter” visualizes pure energy (see Figure 8). In an observer’s reality (external view), a wavematter appears as a wave packet or as a particle. As a wave, it propagates in his x 1 axis at the speed c and it oscillates in his axes x 2 and x 3 (electromagnetic field). Since here we talk about an observer’s reality, the wave propagates and oscillates as a function of coordinate time. In its own reality (internal view), the axis of the wavematter’s 4D motion disappears because of length contraction at the speed c . It deems itself particle at rest. “Wavematter” is not just a substitute word for the duality. Rather, it visualizes an objective concept of energy that takes the internal view of photons into account.
Like spatial and temporal distance, wave and particle are subjective concepts: What I deem wave, deems itself particle at rest. For each wavematter, its own energy condenses (concentrates) to what we call “mass”. Albert Einstein taught us that energy is equivalent to mass [35]. Likewise, the polarization of a wave is equivalent to the spin of a particle. It is this very equivalence that inspired me to coin the word “wavematter”.
In a double-slit experiment, wavematters pass through a double-slit and produce an interference pattern on a screen. An observer deems them wave packets as long as he does not track through which slit each wavematter is passing. Here the external view applies. The photoelectric effect is different. Of course, I can externally witness how a photon releases an electron from a metal surface, but the physical effect is all up to the photon: The electron is released only if the photon energy exceeds the electron’s binding energy. Here the internal view of the photon is the crucial view. The photon behaves like a particle.
The wave–particle duality is also observed in matter, such as electrons [36]. Electrons, too, are wavematters. They behave like waves as long as they are not tracked. Once they are tracked, they behave like particles. Since an observer automatically tracks objects that are slow in his 3D space, he deems all slow (and thus all macroscopic) objects matter rather than waves. To improve readability, I do not sketch any wavematters in the ES diagrams. I sketch what they are deemed by observers: clocks, rockets, galaxies, etc.

5.14. The Mystery of Entanglement

The word “entanglement” was coined by Erwin Schrödinger in his comment [37] on the Einstein–Podolsky–Rosen paradox [38]. These authors argued that QM would not provide a complete description of reality. Schrödinger’s neologism did not solve the paradox, but it demonstrates our difficulties in comprehending QM. John Bell [39] showed that QM is incompatible with local hidden-variable theories. Meanwhile, it has been confirmed in several experiments [40,41,42] that entanglement violates locality in an observer’s 3D space. Entanglement has been considered a non-local effect ever since.
Up next, I show that there is no violation in four dimensions. All we need to untangle entanglement is ER: Non-locality becomes obsolete because all four d μ ( μ = 1 ,   2 ,   3 ,   4 ) are interchangeable. Figure 9 illustrates two wavematters that were created at once at a point P. They move away from each other in opposite 4D directions ± d 4 ' at the speed c . It turns out that they are automatically entangled. For an observer moving in any direction other than ± d 4 ' (external view), the two wavematters are spatially separated. The observer has no idea how they are able to “communicate” with each other in no time.
For each wavematter (internal view), the d 4 ' axis disappears because of length contraction at the speed c . In their common (!) 3D space spanned by d 1 ' ,   d 2 ' ,   d 3 ' , either of them is at the very same position as its twin. From the internal view, the twins have never been spatially separated, but their proper time flows in opposite 4D directions. While the twins stay together spatially, they “communicate” with each other in no time. Their opposite 4D vectors + τ ' and − τ ' do not affect local “communication”. There is a “spooky action at a distance” (phrase attributed to Einstein) from the external view only.
This time, the horizon problem and entanglement are solved exactly the same way: An observer’s 4D vector τ and his 3D space may differ from an observed region’s (or object’s) 4D vector τ ' and its 3D space. This is possible only if all four d μ ( μ = 1 ,   2 ,   3 ,   4 ) are interchangeable. ER also explains the entanglement of matter, such as electrons [43]. In an observer’s 3D space, electrons move at a speed v 3 D < c . In their ± d 4 ' axis, electrons always move at the speed c . Any measurement tilts the axis of 4D motion of one twin and thus destroys the entanglement. In ER, non-locality is an obsolete concept.

5.15. The Mystery of the Baryon Asymmetry

In the Lambda-CDM model, almost all matter was created shortly after the Big Bang. Only then was the temperature high enough to enable pair production. But pair production creates equal amounts of baryons and antibaryons. So, why do we observe more baryons than antibaryons today (also known as the “baryon asymmetry”)? ER scores again: Energy manifests itself as wavematters, and each wavematter deems itself particle at rest. This mystery is solved last because it requires my concept of wavematter.
But why do wavematters not deem themselves antiparticles at rest? Well, antiparticles are created in pair production only. They are not the opposite of particles but particles with the opposite electric charge. Thus, being an antiparticle is relative and the “character paradox” [10] is reasonable: What I deem antiparticle, deems itself particle. We may conclude: The baryon asymmetry is only virtual. The asymmetry disappears as soon as we describe nature in objective concepts. ER also explains why time seems to flow backward for antiparticles: Proper time flows in opposite 4D directions (!) for any two wavematters created in pair production. According to Section 5.14, these two wavematters should be entangled. This gives us a chance to falsify ER. Scientific theories must be falsifiable [44].

6. Conclusions

ER solves mysteries that have not been solved yet (time’s arrow, the Hubble tension, the wave–particle duality, the baryon asymmetry) and mysteries that have been solved only by adding obsolete concepts (cosmic inflation, expanding space, dark energy, non-locality). Occam’s razor shaves all obsolete concepts off. Period. In summary, there are three lessons taught by ER: (1) SR/GR describe an observer’s reality. (2) ER describes the master reality ES. (3) Objective concepts are mandatory in cosmology and in quantum mechanics. Thus, the scope of SR/GR is limited—just as the scope of Newton’s physics is limited.
SR/GR are considered two of the greatest achievements of physics because they have been confirmed over and over. I showed that SR/GR do not provide a holistic view. Physics got stuck in its own concepts. The stagnation in physics is of its own making. It is very unlikely that 15 solutions in different (!) areas of physics are 15 coincidences. Note that all 15 solutions are purely geometrical. In particular, they do not involve forces or fields. Only in natural concepts does Mother Nature disclose her secrets. If we think of an observer’s reality as an oversized stage, the key to understanding nature is beyond all stages.
It was a wise decision to award Albert Einstein the Nobel Prize for his theory of the photoelectric effect [45] and not for SR/GR. I showed that ER penetrates to a deeper level. Einstein—one of the most brilliant physicists ever—failed to realize that the fundamental metric chosen by Mother Nature is Euclidean. Einstein sacrificed absolute space and time. ER restores absolute, cosmic time, but it sacrifices the absolute nature of wave and particle. For the first time ever, mankind understands the nature of time: Cosmic time is the total distance covered in ES divided by c . The human brain is able to imagine that we move through ES at the speed c . With that said, conflicts of mankind become all so small.
Is ER a physical or a metaphysical theory? This is a very good question because only in proper coordinates can we access ES, but the proper coordinates of other objects cannot be measured. I now explain why this is not an issue: We can always calculate these proper coordinates from ES diagrams as I showed in Equations (13a–15c). Measuring is an observer’s source of knowledge, but ER tells us not to interpret too much into whatever we measure. Measurements are wedded to observers, whose concepts may be obsolete. Unfortunately, physics has applied subjective concepts (which work well in our everyday world) to the very large and to the very small. This is why cosmology and QM profit the most from ER. ER is a physical theory because it solves fundamental mysteries of physics.
Final remarks: (1) I only touched on gravity. We must not reject ER because gravity is still an issue. GR seems to solve gravity, but GR is incompatible with QM unless we add another speculative concept (quantum gravity). More studies are required to understand gravity in ER. (2) I only touched on processes. I gave one example in Section 4. More studies are required to confirm “process” as the objective concept of force and field. (3) Mysteries often disappear if we choose the appropriate symmetry. The SO(4) symmetry of ES is the appropriate symmetry in cosmology and in QM. (4) The new invariant θ puts an end to all speculations about time travel. Does any other theory solve time’s arrow as beautifully as ER? (5) To cherish its beauty, we must apply ER. Physics does not ask: Why is my reality a projection? Nor does it ask: Why is it a wave function? Projections are less speculative than dark energy and non-locality. (6) It looks like Plato’s Allegory of the Cave [46] is correct: Mankind experiences projections that are blurred—because of QM.
The primary question behind my theory is: How does all our insight fit together without adding highly speculative concepts? I trust that this very question leads us to the truth. I laid the groundwork for ER and showed how powerful it is. Paradoxes are only virtual. The pillars of physics are ER, SR/GR (describing an observer’s reality), and QM. Together, they describe Mother Nature from the very large to the very small. Introducing a holistic view to physics is what I consider my most significant contribution: All observers’ views taken together do not make a holistic view. The holistic view holds additional information that is hidden in absolute time and thus not available in SR/GR. Everyone is welcome to solve even more mysteries. May ER get the broad acceptance that it deserves!

Funding

No funds: grants, or other support was received.

Acknowledgments

I thank Siegfried W. Stein for his contributions to Section 5.11 and for the Figure 3, Figure 5 center, and Figure 6 (partly). After several unsuccessful submissions, he eventually decided to withdraw his co-authorship. I also thank Matthias Bartelmann, Dirk Rischke, Jürgen Struckmeier, and Andreas Wipf for asking questions and commenting. In particular, I thank all peer reviewers and editors for the precious time that they spent on grappling with my manuscript.

Comments

It takes open-minded, courageous editors and peer reviewers to evaluate a theory that heralds a paradigm shift. Whoever adheres to established concepts paralyzes the scientific progress. I did not surrender when top journals rejected my theory. Interestingly, I was never given any solid arguments that would disprove my theory. Rather, I was asked to try a different journal. Were the editors dazzled by the success of SR/GR? Did they underestimate the benefits of ER? It seems to me that most editors were afraid of considering a new theory that opposes the mainstream. Even friends refused to support me. Anyway, each setback inspired me to work out the benefits of ER even better. Finally, I succeeded in disclosing a physical issue in SR/GR and also in formulating a holistic theory of spacetime, which is even more general than Albert Einstein’s “general” relativity. Some physicists have difficulties in accepting ER because the SO(4) symmetry of ES is incompatible with waves. ER is not disputing waves but limiting their occurrence to an observer’s reality. A well-known preprint archive suspended my submission privileges. I was penalized because I disclosed an issue in Einstein’s SR/GR. The editor-in-chief of a top journal replied: “Publishing is for experts only.” Another editor could not imagine that the Hubble tension is solved without GR. I do not blame anyone. Paradigm shifts are always hard to accept. These comments shall encourage all young scientists to stand up for promising ideas even if opposing the mainstream is hard work. Peer reviewers considered my theory “unscholarly research”, “fake science”, and “too simple to be true”. Simplicity and truth are not mutually exclusive. Beauty is when they go hand in hand together.

Conflicts of Interest

The author has no conflicts to disclose.

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Figure 1. Observer’s reality and master reality ES (for orthogonal projections, see Section 4). Left: How to relate an observer’s reality to ES. Right: Where to apply SR/GR and where to apply ER.
Figure 1. Observer’s reality and master reality ES (for orthogonal projections, see Section 4). Left: How to relate an observer’s reality to ES. Right: Where to apply SR/GR and where to apply ER.
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Figure 2. Minkowski diagram and ES diagram of two identical clocks “r” (red) and “b” (blue). Left (SR): “b” is slow with respect to “r” in t ' . Coordinate time is relative (“b” is not at the same positions in c t and c t ' ). Right (ER): “b” is slow with respect to “r” in d 4 . Cosmic time is absolute (“r” is in d 4 at the same position as “b” in d 4 ' ). Only the ES diagram is rotationally symmetric.
Figure 2. Minkowski diagram and ES diagram of two identical clocks “r” (red) and “b” (blue). Left (SR): “b” is slow with respect to “r” in t ' . Coordinate time is relative (“b” is not at the same positions in c t and c t ' ). Right (ER): “b” is slow with respect to “r” in d 4 . Cosmic time is absolute (“r” is in d 4 at the same position as “b” in d 4 ' ). Only the ES diagram is rotationally symmetric.
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Figure 3. ES diagrams and 3D projections of two rockets “r” (red) and “b” (blue). Top: Both rockets move in different 4D directions at the speed c . Bottom left: Projection to the 3D space of R. Rocket “b” contracts to L b , R . Bottom right: Projection to the 3D space of B. Rocket “r” contracts to L r , B .
Figure 3. ES diagrams and 3D projections of two rockets “r” (red) and “b” (blue). Top: Both rockets move in different 4D directions at the speed c . Bottom left: Projection to the 3D space of R. Rocket “b” contracts to L b , R . Bottom right: Projection to the 3D space of B. Rocket “r” contracts to L r , B .
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Figure 4. ES diagram of two identical clocks “r” (red) and “b” (blue). Clock “r” and Earth move in the d 4 axis of “r” at the speed c . Clock “b” accelerates in the d 1 axis of “r” toward Earth.
Figure 4. ES diagram of two identical clocks “r” (red) and “b” (blue). Clock “r” and Earth move in the d 4 axis of “r” at the speed c . Clock “b” accelerates in the d 1 axis of “r” toward Earth.
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Figure 5. Solving three instructive problems in ER. Each snapshot shows one instant in cosmic time. Left: The blue ball “b” is approaching the red ball “r”. In the 3D space of “r”, the balls collide. Center: A rocket moves along a wire. In the 3D space of the wire, the wire does not escape from the rocket. Right: Earth orbits the sun. In the 3D space of the sun, the sun does not escape from Earth.
Figure 5. Solving three instructive problems in ER. Each snapshot shows one instant in cosmic time. Left: The blue ball “b” is approaching the red ball “r”. In the 3D space of “r”, the balls collide. Center: A rocket moves along a wire. In the 3D space of the wire, the wire does not escape from the rocket. Right: Earth orbits the sun. In the 3D space of the sun, the sun does not escape from Earth.
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Figure 6. ER-based model of cosmology. The circular arcs are part of an expanding 3D hypersurface. Left: Galaxy G recedes from the location of the Big Bang (origin O of ES) at the speed c , and from the d 4 axis in particular at the 3D speed v 3 D . Right: If star S 0 happens to be at the same distance D today at which the supernova of star S occurred, S 0 recedes more slowly from Earth than S .
Figure 6. ER-based model of cosmology. The circular arcs are part of an expanding 3D hypersurface. Left: Galaxy G recedes from the location of the Big Bang (origin O of ES) at the speed c , and from the d 4 axis in particular at the 3D speed v 3 D . Right: If star S 0 happens to be at the same distance D today at which the supernova of star S occurred, S 0 recedes more slowly from Earth than S .
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Figure 7. Hubble diagram of simulated supernovae at distances up to 1250 Mpc. The horizontal axis is D for the red points or else D 0 for the blue points. The red points were calculated from Equation (22). They do not yield a straight line because H θ is not a constant. The blue points were calculated from Equation (23). They yield a straight line if we do not confuse D 0 with D .
Figure 7. Hubble diagram of simulated supernovae at distances up to 1250 Mpc. The horizontal axis is D for the red points or else D 0 for the blue points. The red points were calculated from Equation (22). They do not yield a straight line because H θ is not a constant. The blue points were calculated from Equation (23). They yield a straight line if we do not confuse D 0 with D .
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Figure 8. Illustration of a wavematter. In an observer’s reality (external view), a wavematter appears as a wave packet or as a particle. As a wave (shown here), it propagates and oscillates as a function of coordinate time. In its own reality (internal view), the axis of the wavematter’s 4D motion disappears because of length contraction at the speed c . It deems itself particle at rest.
Figure 8. Illustration of a wavematter. In an observer’s reality (external view), a wavematter appears as a wave packet or as a particle. As a wave (shown here), it propagates and oscillates as a function of coordinate time. In its own reality (internal view), the axis of the wavematter’s 4D motion disappears because of length contraction at the speed c . It deems itself particle at rest.
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Figure 9. Two wavematters moving in ± d 4 ' at the speed c are spatially separated for an observer moving in any direction other than ± d 4 ' (external view). For each wavematter (internal view), the d 4 ' axis disappears. From the internal view, the twins have never been spatially separated.
Figure 9. Two wavematters moving in ± d 4 ' at the speed c are spatially separated for an observer moving in any direction other than ± d 4 ' (external view). For each wavematter (internal view), the d 4 ' axis disappears. From the internal view, the twins have never been spatially separated.
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