Did Scientists Forget basic principles of time?

 Well let us talk about Time Travel today, to start with fundamentals time travel is when a person or an entity travels forward or backward in time. our basic assumption is that a person travels back in time to a certain time frame let us take an example. this is the year 2022 when a person travels 10 years back in time, he goes back to 2012, and similarly when he travels 10 years into the future it's 2032. I argue that this way of time travel is practically impossible and lets us investigate why is that so.

"We are constantly looking at the past thought our life" why is that? well to understand this let us talk about the human eye, the human eye is a sense organ that allows us the sense of vision, and how the image of a picture is sensed by this sense organ is fundamentally dependent on "Light", a human eye senses the light which is falling on it and the cones and rods inside our eye declassify information from the light and communicate it to our brain. now in order to see something, there needs to be some light hitting the surface of our eye and in order for the light to do that it needs to hit the surface of an object or an entity first so lets say if two people person A and person B are standing opposite to each other and if person B raised his hand in order for person A to perceive the information that person B is raising his hand the light needs to hit person B's hand first and then reflect back and hit the surface of person A's eye and person A's eyes and brain need to decode that information and then person A knows that person B is raising his hand. let us assume N amount of time is being consumed for this process. so if we assume that person B is raising his hand at X time the total time by when person A perceives that person B is raising his hand is X+N and thus person A is looking into past by N amount of time. a similar principle is used when we look at the moon or when we look at the sun we are actually looking into past. the time light takes to reach earth from the surface of the sun is 8 and 1/3 minutes which means when we look at the sun we are looking 8 and 1/3 minutes into the past. similarly planets which are farther away from earth when we are looking at a planets which are some millions of light-years away from earth we are looking into millions of years into the past of that planet. the current event which is the Constant time of that planet has not reached earth yet and that is the reason we don't know about the current state the planet is in. 

Scientists believe Time travel into the future is possible, simply by going really really fast nearly at the speed of light or greater. I argue that scientists who thought this really need to rethink their science because what their theory is simply Einstein's theory of relativity, if a person travels at the speed of light the time moves slower for him but for others time moves normally. this allows a person to travel further in time. however, there is quite a big flaw in this theory , I say that the time is Constant and it stays same for a person whether he is moving at the speed of light or stationery, let us again get into an example lets take two people Person A and person B lets say person A wants to time travel into the future so A gets into a ship which can move at the speed of light and circles the earth at the speed of light , the general speed of light is 3*10^8 m/s and according to math a beam of light can encircle earth 7 times within a second. and person B is standing still beside few buildings and also let us assume one of the buildings is having a clock on it and the time it projects is 6:09:00 pm and the year 2022 . now lets say Person A travels at the speed of light for 1 second which means he had gone around earth for 7 times but when he reaches the point person B is still there standing the buildings are all there and the time on the clock is 6:09:01 pm 2022. now lets say he keeps traveling for 60 seconds at the speed of light (theoretically according to scientists this person must be approximately traveling 60 seconds into the future)after 60 seconds of journey he returns to the same point and Person B is still standing and nothing changes and time on the clock will be 6:10:01 pm 2022 nothing will have changed but this person would have gone around earth 60*7=420 times, and thus Time travel does not happen. if someone could prove this theory with some amount of supporting evidence or perform the experiment which i explained i am 100% sure that someone would have disproved Einstein's theory of relativity and that Time travel is practically not possible.