One of the most difficult question one can ask a physicists or anyone for that matter is what is time because it does not have a physical presence. This may be the reasons some define it only in the abstract saying that is an invention of the human consciousness that gives us a sense of order, a before and after so to speak of the changes that occur in our environment.
What Is Time? Determinism, Quantum Physics, Consciousness, Free Will, Causality. 
However physicists are not afforded the option of an abstract definition because they have defined gravity in terms of the physical curvature in a spacetime dimension. For example, a physical curvature in spacetime is viewed by many physicists to be causality of the force of gravity.
In other words to be consistent they should be able to define it in terms of its physicality.
Yet it is possible that time may be something which cannot be defined by a what but may be an effect similar to how color is not a something but is an effect cause by how light is reflected by a something. If this is true physicist’s would have to find another way to define gravity other that one that depends on the interactions of space and time defined by Einstein.
Another question that is difficult to answer is if nothing in the universe changed would time still exist.
Answering this question may provide an answer as to what time is because if change is the causality of our perception of time then understanding what causes it in the spacetime environment that physicist’s say we live may help us to understand how it is connected to our environment.
However, as Einstein suggested in the following quote time cannot not be physically connected to the process of change because it is a rigid unchanging component of a spacetime environment defined by both his Special and General Theories of Relatively and therefore could not be responsible of the dynamic process associated with change.
"Since there exists in this four dimensional structure [spacetime] no longer any sections which represent "now" objectively, the concepts of happening and becoming are indeed not completely suspended, but yet complicated. It appears therefore more natural to think of physical reality as a four dimensional existence, instead of, as hitherto, the evolution of a threedimensional existence."
In other words according to Einstein the structure of spacetime is ridge while the changes we associated with time are merely an illusion similar to the illusion of change created in a flip book when one rapidly flips through its pages containing series of pictures that vary gradually from one page to the next.
Yet this means if, as he suggested the time dimension is not responsible for the "evolution of a threedimensional existence" some other geometric property of the our universe must be physically connected to it to allow change to propagated through it.
Therefore to understand the "evolution of a threedimensional existence" one would have to explain how the change propagates through it without referring to a time dimension.
Einstein gave us the ability to do this when he defined the energy associated with the evolution of a spacetime environment in terms of the equation E=mc^2 the constant velocity of light because that provided a method of converting a unit time and redefine the energy in that environment to its equivalent in four *spatial* dimensions. Additionally because the velocity of light is constant he also defined a one to one quantitative and qualitative correspondence between his spacetime universe and one made up of four *spatial* dimensions.
In other words he tells the physical properties of a spacetime geometry are related to an observer’s interpretation similar to how the measurements of their magnitudes are related an observer’s velocity. This is because, as was show above one can reinterpret the mathematics associated with the time dimension in an environment consisting of four dimensional spacetime with a spatial one to create one in only four *spatial* dimensions with identical properties. However one must be careful not to think of this as the physical replacement of the time dimension in Einstein’s universe with a spatial one because according to his mathematics they coexist in the same geometric plain.
Additionally the fact that the equation E=mc^2 allows us to quantitatively derive energy in a spacetime environment in terms of four *spatial* dimensions is the bases for assuming as was done in the article “Defining energy” Nov 27, 2007 that all forms of change can be derived in terms of a displacement in a "surface" of a threedimensional space manifold with respect to a fourth *spatial* dimension instead of one in a spacetime manifold.
Doing would also allow physicists to define gravity and energy in terms that do not depend on time or the interactions of space and time defined by Einstein.
Additionally it would allow one to understand how the geometric properties of space interact to create the change associated with time in terms of a physical image without using it because we can "see" or perceive how a void in space created by any displacement causes change where, as was mentioned earlier we cannot with time.
For example, we can physically observe how the energy stored in the displacement of water in dam causes change in an environment when it is released or allowed to flow over it. In other words we can form a physical image of the causality of the changing level of water in a dam in terms of its movement through the spatial void between its top and bottom.
Similarly one can form a clear physical image of how and why change occurs in our threedimensional environment by assuming the energy stored in a spatial displacement in a "surface" of a threedimensional space manifold with respect to a fourth *spatial* dimension is released though the "void" that displacement creates in four dimensional space.
This suggest the change most associate with time may be an effect caused by an interaction of a fourth spatial dimension with our three dimension environment.
In other words similar to how an the color of an apple is an effect created by an interaction between light and its surface time may be the effect of a physical interaction of our threedimensional environment with a four *spatial* dimension.
It should be remember Einstein’s mathematical model which defines the physical geometry of our universe tells us that an all objects must simultaneously exist in both a spacetime environment and one consisting of four spatial dimension because as was shown above one can use his mathematics to define two identical universes; one in four dimensional time and another made up of only four *spatial* dimensions. Which one we use to define our reality is dependent on how an observer interprets his mathematics.
Later Jeff
Copyright Jeffrey O’Callaghan 2016
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01
For the past 50 years, the Standard Model of particle physics has given us a complete mathematical description of the particles and forces that shape our world with the exception of gravity. It predicts with so much accuracy the microscopic properties of particles and the macroscopic ones of stars and galaxies that many physicists feel it is the ultimate theory of matter and energy.
But as Charles Seife mentions on page 142 of his book Alpha & Omega "Taken literally the plain vanilla form of the Standard model does not say anything about particle mass at all: in fact if theorists try to put mass in to its equations they blowup and become meaningless."
In 1964 Peter Higgs showed that one can solve this problem and explain why particles have inertial or rest mass if one assumes space is permeated by what is called a Higgs field.
He was able to show that if the particles called boson change their velocity or accelerate, then the Higgs field should exert a certain amount of resistance or drag which according to his theory is the origin of mass. In a slightly more precise terminology, the origin of mass is an interaction between a particle and the (nonzero) Higgs field. It also assumes the disturbance created by mass as it moves through this field would break it’s symmetry triggering the Higgs mechanism, causing the bosons it interacts with to have mass and generate the particle called the Higgs boson.
In 4 July 2012, the ATLAS and CMS experiments at CERN’s Large Hadrons Collider announced they had each observed a new particle the Higgs boson which many physicists tell us confirms the existence of the Higgs field.
However the Standard model’s explanation of mass as a broken symmetry of a spatial environment does not tell us what it is symmetrical to. In other words it does not answer the question "What spatial boundary or axis are the components of the Higgs field asymmetrical to?"
As was mentioned earlier the addition of the Higges field to the Standard Model gives us an almost complete mathematical description of the particles and forces that shape our world in terms of broken symmetries because it does not incorporate the gravitational forces into it.
Einstein on the other hand mathematically derived the causality of gravity in terms of an asymmetrical property of a spacetime environment.
However the fact that Einstein used the broken symmetry of a spacetime environment to derive gravity or the forces associated with mass suggests he may have provided a method of defining the physical mechanism responsible for the symmetry breaking the Standard Model assumes is responsible for that mass.
This is true even though time is only observed to move in one direction forward and never appears to stop so therefore does not have a boundary by which one can define asymmetries.
However he gave us the ability redefine the asymmetries in a spacetime environment responsible for mass in terms of their spatial properties when he defined them in terms of the constant velocity of light because that provided a method of converting a unit of time to its equivalent unit of space in four *spatial* dimensions.
Additionally because the velocity of light is constant it also defined a one to one quantitative and qualitative correspondence between his spacetime universe and one made up of only four *spatial* dimensions.
The fact that one can use Einstein’s theories to qualitatively and quantitatively define the displacement he associated with gravitational energy and mass in a spacetime environment in terms of four *spatial* dimensions is bases for assuming as was done in the article “Defining energy” Nov 27, 2007 that all forms of energy including that associated with mass can also be defined in terms of a spatial displacement in a "surface" of a threedimensional space manifold with respect to a fourth *spatial* dimension.
This would allow one to define the asymmetrical properties or broken symmetries Einstein associated with gravity in terms of a spatial displacement in the "surface" of a threedimensional space manifold with respect to a fourth *spatial* dimensions.
However it also allows the Standard Model to use Einstein theories define the asymmetry associated with the energy of the mass component of particles in terms of their spatial instead the time properties of space.
For example the symmetry of the mathematics of the Standard Model tells us that particles and antiparticles are always created in pairs. However the only way to explain this in a spacetime environment is to assume that they are moving backwards in time. Yet, as was mentioned earlier no one has ever observed time to move backwards.
Yet if one interprets the symmetry of the Standard Model in terms of its spatial instead of its spacetime properties as was shown above to be possible one would realize that because we can move in two direction upwards and downwards in the spatial dimensions one can easily define the symmetrical boundary between particles and antiparticles in terms the equal distance they would occupy above and below the physical "surface" of a threedimensional space manifold with respect to fourth *spatial* dimension.
Yet one can also define asymmetrical properties of the Higgs field the Standard Models assumes is responsible for mass in terms of object or particle occupying the volume either above or below the physical "surface" of a three dimensional space manifold with respect to fourth *spatial* dimension.
In other words converting or transposing Einstein spacetime theories to their spatial equivalent as was done above shows that the asymmetries the Standard Model associates with mass and those Einstein associated with gravity share a common property of the geometry of space.
It should be remember Einstein’s mathematical model which defines the physical geometry of our universe tells us that an all objects must simultaneously exist in both a spacetime environment and one consisting of four spatial dimension because as was shown above one can use his mathematics to define two identical universes; one in four dimensional time and another made up of only four *spatial* dimensions.
Which one we use to define a solution to a problem, as mentioned earlier is only dependent on how an observer interprets his mathematics.
Later Jeff
Copyright Jeffrey O’Callaghan 2016
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