Submitted by Tank_AT t3_11r2ae9 in askscience
Aseyhe t1_jc9rx8m wrote
Reply to comment by saunders77 in Does space expansion occur uniformly in all directions and dimensions? by Tank_AT
It's fine to view space as expanding, since again, that represents a convenient coordinate choice. I use it frequently in calculations. The key point is just that this "expanding space" doesn't have physical consequences.
It's like how two people walking due north from the south pole will gradually separate from each other despite walking in the same cardinal direction, but the process of walking north doesn't induce an expansion force on your body.
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