13.8 billion years ago, the Big Bang occurred. Consequently, this is the distance that the observable universe can extend, that is, 13.8 billion light years. We can further assume that the spacetime beyond that distance may be another universe and therefore there could be multiple universes or multiverse.

We discussed the Big Bang that generated our universe. What if there was more than one Big Bang? This assumption can lead to the existence of a multiverse.

For religious readers, I must point out that the conflict between Genesis as the Bible sees it and the Big-Bang as scientists see it will not be resolved here. There is no compatibility between the two. Suffice it if I mention that there are basic differences in the order of events, in the time scale, and even in the future prediction of our destiny. On the one hand God will protect us and there will be resurrection in the future and on the other hand the Earth will get cold and we will die. The Bible tells us that the universe was supernaturally created by God and the Big Bang tells us that it was created and evolved naturally. We cannot save the billion years of creation with the thousands of years according to the Bible.

It is fascinating to hear the explanations of orthodox physicists. Some would try to explain that there is no contradiction since God also created the Big Bang or the day of God, maybe millions of years. Other orthodox physicists would simply accept the conflict and would not attempt to combine faith with scientific evidence. However, it is a common belief that there was a starting point for creation. It is impossible to bridge the gap between the different views on creation. It is especially difficult for the orthodox group to accept the facts of archaeological evidence for dinosaurs, Neanderthals, or Darwinian theories.

We live in a three-dimensional world or four if we consider space and time. What if there are more than four dimensions? Consequently, we could have other worlds in different dimensions that can lead to the concept of Parallel Universes.

Is the speed of light the same everywhere? Or can space / matter travel faster than the speed of light?

According to the special theory of relativity, a particle with subluminal speed needs infinite energy to accelerate to the speed of light.

What if we have unusually distorted regions of spacetime where matter can reach remote locations in less time than light could reach in undistorted spacetime?

In this case we have a transmission faster than the speed of light.

Background and known facts.

A light year is a unit of astronomical distance equivalent to the distance light travels in one year, 1 light year = 9.4605284 × 1015 meters or 9.4607 × 1012 km (almost 6 billion miles or 9 billion km). 9460730472580 800 meters exactly. Light travels at 300,000 kilometers (186,000 miles) per second. The speed of light will have its known and accepted value only if it is measured in a vacuum. The speed of light is independent of the motion of the observer and does not vary with time or place.

Light slows down in air, water, and glass. The deceleration is the refractive index of that medium.

The particle of light, the photon, is massless or very small if not zero. If the mass is not zero, the speed of light would not be constant. The standard time is adjusted by adding or subtracting a leap second from time to time. There is a slowdown of the Earth’s rotation by about 1 / 100,000 of a second per year due to tidal forces between the Earth, the Sun and the Moon.

The basic theories and measurements related to the light year are widely accepted, however when we leave this galaxy there can be many inaccuracies and further calculations and validations are required to keep those theories and calculations developed for our galaxy. When we leave our universe, those calculations can be inaccurate or even out of date.

In his new theory, Einstein argued that the speed of light is changing. In his book [Einstein, 1920] “Relativity: the special and general theory”, he wrote: according to the general theory of relativity, the law of the constancy of the speed of light in vacuum, which constitutes one of the two fundamental assumptions in the special theory of relativity , you cannot claim any unlimited validity. A bending of light rays can only take place when the speed of propagation of light varies with position. In special relativity, the speed of light is constant when measured in any inertial frame. In general relativity, the appropriate generalization is that the speed of light is constant in any reference frame in free fall.

There are billions of people on Earth. Our Earth orbits the Sun in our Solar System. Our Sun is one star among the billions of the Milky Way. Our Milky Way is one of the billions of galaxies in our Universe. A galaxy is a large collection of stars, gas, and dust held together by gravity.

A wormhole, or Einstein-Rosen bridge, is a hypothetical topological feature that would essentially be a shortcut through space-time. A wormhole is a theoretical passage through space-time that could create shortcuts for long journeys through the universe. It is very much like a tunnel with two ends, each at separate points in space-time. There could be a space-time tunnel in the middle of the Milky Way and we could travel through it. Wormholes are areas where space and time are bending so that distant points are now closer together. Einstein predicted the existence of a wormhole in his theory of general relativity in 1935.

The Möbius strip is a surface with only one side and only one boundary.

What if -Theory.

We assume that the light year (LY) is a constant, or LY = c where c = constant. Broadly speaking, we can assume that LY = f (c, x1, x2, …, xn) where {x1, x2, …, xn} are variables that could be zero, which means that LY = c would match with acceptable terminology or calculations.

However, what if one of the xi-s has a non-zero value?

Obviously, this assumption can affect the value of LY. Such xi-s can be those parameters that can slow down or accelerate the speed of light, thus affecting LY.

What factors maybe in the group of xi -s?

The answer could be: wormholes, bubbles, black holes, the expansion of the universe, etc. These and other parameters must be considered for time distortions within and between galaxies and / or multiverses.

Suppose the normal calculation says that to go from Earth (e) to planet (b) the measured distance (d) is LY (k), which corresponds to n years in time

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