https://www.youtube.com/watch?v=Jgt3VAOKNuY
4D and time travel might not be the same thing.
Some are sure of it.
No, Time Is Not The 4th Dimension https://www.youtube.com/watch?v=bUYfFCpaDUI
Did The Future Already Happen? - The Paradox of Time https://www.youtube.com/watch?v=wwSzpaTHyS8
Does the Past Still Exist? https://www.youtube.com/watch?v=GwzN5YwMzv0
