No idea. It’s extremely complex and their is actually a scientific field in Mathematics – Knot Theory – dedicated to working out how it works. Yes, people dedicate their lives to answering questions like yours. I guess for more reason that just headphones though. Try tying the headphone wires to two long sticks..
I guess it’s to do with the way headphones move around in your pocket as you move. I think if you put them in your moment and then didn’t move they might be fine. I hate tangled earphones – it drives me bonkers. Even more so than loosing a sock to the washing machine god.
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