Hypothesis of 4D time


Many people treat the universe as if only 3 spacial dimensions existed and only the present exists with the past somehow magically disappearing and the future not existing until we get there. But, think of a YouTube video, every frame has 3 dimensions, breath, width and hight (z,x,y) but you can also fast forward or rewind in the dimension of time(t), but every frame of the video exists no matter what part of the video we are watching.


Implications for the direction of time and time travel


The reason why we may find ourselves always traveling foward in time may be because our bodies and brains are chemical mechanisms and our experience of time can only happen when the chemical reactions inside our body happen. That is why asking to travel back in time is impossible. Because the chemical process would need to work in reverse.


Existentialist implications


If all of time exists, then we are eternal (while not infinite) beings. While you are reading this article, there is another you from five minutes ago working his way up to now. And we are working our way up to ourselves that already exists in the future.


Disprovability: of course we can not prove that the past or the future exist unless we can observe them in some way. We would need a way to prove that the past or future still exist to prove this hypothesis. Observing the future would probably be the best proof because it would not be a reconstruction of the past(but I guess it could be perfect forecast)


Religious implications


If the universe has always existed and will always exist. It eliminates the need for a creator. If you argue that we cannot get rid of causality, I would say that you are already proposing a similar thing by saying that "God is an eternal being". As Carl Sagan said "if you propose that God is eternal, why not take a step back and propose that the universe is eternal.”


Evidence that the past does exist there is no evidence that the past still exists unfortunately, it would seem that everything we know about the past is contained inside the present, like history text books, pictures, etc. all exist only in the present as far as we know.


True statements about the past are evidence that the past still exists
how can a statement about the past be true if the past does not exist anymore? for example, if I say, I had a burrito for breakfast today, how can it be a true statement if the event of my eating a burrito no longer exists.


infinite regress problem
This hypothesis deals with the problem of infinite regression of the universe, which states that “if time is infinite how did we ever get to this point in time when there are an infinite amount of moments between the beginning and now", because this hypothesis does propose that time is infinite but has a beginning that everyone is currently going through one part of time which starts at the beginning and ends at the end. but every part of the trip has always existed.