I understand that the “observable” universe is entirely based on where you are located. Is there a method of determining where you are currently located without being relative to the observer? Everything is currently expanding away from each other, meaning nothing is ever in the “same spot” for very long. How do you know where you actually are in the universe?
Relevant lecture: https://m.youtube.com/watch?v=6kwcokUFaqo
It’s simply a statement about the local homogeneity of the Universe. The article makes a lot of statements that, if the author was a Physics student, they would flunk a bunch of exams.