My theory  I devoloped this theory after reading Late. Prof. Stephen Hawking’s book " A Brief History Of Time "
Fundamental Theory Of Existence.
https://fundamentaltheoryofexistence.blogspot.com/
http://gorijalasagar.blogspot.com/
When we divide a number other than zero with 1 we get the same number. Dividing with 1 means cutting the number into 1 part, it means the number remains as a single part, the number remains same. When we divide a number with 2 we mean to say that we are cutting the number into 2 parts and we get two halves of the original number. Dividing with zero/0 means we are cutting the number into zero parts or we can say that we are making that number into zero. It means the number has to become zero. It means the number will be equal to zero which is not possible. There is an exception and that number is zero itself. Zero can be divided by zero as we get the same equality. Zero is equal to zero and zero can be cut into zero parts, it means we have the same number without any inequality. Zero can not divide any other number as inequality exists between other numbers and zero.
Division with zero means converting numerator into zero parts. Zero divided by zero is zero as numerator can be converted to zero parts. To divide any number other than zero into zero parts is not possible. For example 1 can not be divided into zero parts. If 1 can be converted into zero parts then we get 1 is equal to zero which is not possible. If 1 can be divided into zero parts we get 1=0 and it means failure of balance, failure of all equations and also failure of all laws that govern existence. 1 is not equal to zero so 1 can not be destroyed into 0 parts and 1 can not be created from 0. It is clear that creation and destruction between 1 and 0 are impossible. 1 can not be created from 0 and 1 can not be destroyed into zero.

Any number other than zero can not be divided by zero.

Creation is impossible. Also destruction is impossible.
As numerator other than zero can not be cut into zero parts, numerator can not be destroyed into zero parts. And, as numerator other than zero can not be divided into zero parts, inequal numbers can never become equal. If number other than zero can be cut into zero parts by zero then we get equality between inequal numbers. Because if numerator 1 or 2 or 3 or 4 can become zero after cuttting them with 0 then we get 1 = 2 = 3 = 4 = 0 which is impossible. So, creation is also impossible. As inequal numbers can never be equal creation and destruction are impossible. An artist can create and or destroy a piece of art and it is relative creation and relative destruction which are related to change of form. But, absolute creation and absolute destruction are impossible. Absolute creation means 1/2/3/4 apple(s) or 1/2/3/4 mango(s) or 1/2/3/4 lime(s) or 1/2/3/4 orange(s) or 1/2/3/4 kg gold can be created from zero and absolute destruction means something that exists can be converted into zero and we are not talking about change of form. We are talking about appearing from zero and disappearing into zero without change of form which is impossible. If creation + destruction are possible then we get 1 = 2 = 3 = 4 =0. It means 1 can become zero and zero can become 1 also 2 can become zero and zero can become 2 also 100 can become 2000 and 3000 can become million. Which is impossible. Therefore absolute creation and absolute destruction are impossible.
Creation is impossible and it means that Universe can not be created and was never created. It means Universe has beginning for its existence. Also destruction is impossible and it means that Universe has no end.
 Universe has no beginning and also there is no end to the existence of the Universe.
As creation is impossible, Universe can not increase in quantity and everything in the Universe is finite. So Universe is finite and anything that has physical existence can never increase beyond finite value. Therefore existence of anything physical can never become unlimited or infinite.
 Existence of anything physical can not be infinite.
As creation and destruction are impossible and as Universe has no beginning and no end too, there is no room for Creator, it means that there is no God in the Universe.
 God(s) can not exist.
Sir Issac Newton said that Space is absolute and the great Albert Einstein said that space is relative. Albert Einstein said that space can contract and expand under the influence of gravity. Albert Einstein in his " Theory of relativity said that velocity of light is constant ". And again Albert Einstein came up with a new theory known as General theory of relativity. And, in General theory of relativity Albert Einstein said that gravity bends space and light travelling in a bent space cases light not to escape black holes. He made two mistakes. His first mistake is to conclude that velocity of light is constant and then he explained his postulate with another theory and said that gravity bends space and this is his second mistake.
In the beginning there was a train experiment concerning velocity of light. What is it? If I am standing on ground without moving and a passenger in train is moving away from me travelling in train then he can look at me as if he is not moving and I am moving away from him. This is called relative movement. And if I am not standing still and if I am walking away from him then he will see me walking away with the speed of train plus with my speed of walking. But, Scientists observed that velocity of light on ground was found to be 186,282 miles per second (299,792 kilometers per second) also if you are the passenger in the moving train and if I am carrying source of light and if you measure velocity of light coming from light source I am carrying then Scientists found out that the velocity of light was found to be same and it is 186,282 miles per second (299,792 kilometers per second) on Earth. Then someone said that there is a substance in Universe called Ether and light travels relative to ether and that is why velocity of light was not found to be relative and it was found to be constant. Several years later two Scientists conducted an experiment and that experiment is known by their names and it is known as Michelson–Morley experiment, after this experiment the two Scientists concluded that there is no such thing as ether. Why is velocity of light is found to be constant and what did the experiment reveal? In the train experiment you must notice that I was carrying light source or source of light and when light is generated from the source it was not being carried by me. Even if the source of light is being carried by a train, you must know that light generated is not being carried by the train and that is why velocity of light is not found to be alterted. This means concluding that this experiment has anything to do with velocity of light being constant or relative is invalid. In Michelson–Morley experiment velocity of light was measured where they did not change gravity. Entire Michelson–Morley experiment was conducted where the gravity is same. For physical objects that are not light or not other forms of electromagnetic radiation gravity is directly proportional to mass. It means 1 kg gold will have less gravitational pull than 2 kg gold. So for gold gravity is directly proportional to mass. But, light is a form of energy and light has both mass and energy. The famous equation E equals to mass times square of velocity of light ( E = m . C square ) says that Massenergy equivalence states that mass is concentrated energy. The equation says that mass can be converted into energy. This equation is not only equation for Massenergy equivalence, it also the equation of light. This equation which is also the equation of light says that light is a form of energy with mass and when we consider the relationship of light with gravity we must understand that light is a form of energy with mass. So light’s mass is inversely proportional to gravity as light has both energy and mass. Gold has mass and its mass is directly proportional to gravity and light has both energy and mass and light’s mass is inversely proportional to gravity. Therefore velocity of light is found to be 186,282 miles per second (299,792 kilometers per second) on Earth whereever the gravity value does not change. Velocity of gold was found to be relative even on Earth’s surface. But, velocity of light was found to be of same value on Earth’s surface as light is unlike gold and has inverse relation to massgravity. So, gold’s velocity is found to be relative even when there is no change in gravity. But, velocity of light is found to be relative when there is change in gravity. So velocity of light increases on moon than on earth as light’s velocity is inversely proportional to gravity. Moon has lesser gravity than Earth and that is why velocity of light will be more on Moon than on Earth. Therefore gravity bending space in not true and velocity of light is not constant. Space is absolute and velocity of light is relative. Gravity does not bend space. Gravity bends light. Also in computer screen we can have single dimension, two dimensions and three dimensions. In computers single dimension is line, two dimensional object is square and also in computers three dimensional object is cube. So, in virtual reality we can have single, double and triple dimensions. In physical world or universe the fundamental object like atom itself are three dimensional and in physical world less than 3 and more 3 dimensions are not possible. So, string theory which claims more than 3 physical dimensions is not correct in physical existence. Single dimension is associted to length, double dimension to area and triple dimension to volume. If string theory is correct and there are more than 3 space dimensions then we must have more than volume, which is clearly not observed to be true.

Velocity of light is relative.

Space is absolute. Space is three and three dimensional only.
Also time is a representation of change and in a changing universe there is no going back or going forward as there are no unlimited universes with unlimited changes. Time travel is not only impossible but does not make any sense. There is only our world or universe and it is chaning and there is no going back in time and also no going forward in time. Existence is finite and time travel is meaningless.
 Time travel is impossible.