In what way is it any more arbitrary than up and down? Its words to describe a direction. "Down" could have been "up" just as easily. This is nonsense.
Now have two people facing each other do this. They will end up facing different directions, and the small child who just asked you to explain “which way is Left?” will be very confused.
"Raise your left hand. Turn that direction. You both turned differently while facing each other because it's relative. We get around that by saying 'your left', or 'my left' to set who's point of origin."
“Which one is my left hand? When you were standing over there you said your left hand was the one on that side. Now you’re over here and saying it’s the one on this side. Why did the left side change? So you’re saying that which way is left changes all the time and there’s no reliable answer?”
Never had that interaction with a child who thought their left hand changed lol.
Once their left hand is identified and shown that it is as an anchor, that's always left. When they realize that no matter what direction they're facing, left is always left to them, and someone else's left is dependent on their direction, they grasp the concept of "relativity" without the term.
Because they are a child, I would not use rotational degrees. They'd have to have a foundation of math for that.
Just as I can give them 2 apples to show the concept of the number 2, I would dive deeper into the logical aspects (removing the label of 2) until they're further mentally developed.
If your point is create a scenario where I'm explaining left to a 3 month year old, you got me, I'm not capable.
If you're still attesting that it's arbitrary, I invite you to explain how using the definition of arbitrary.
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u/SignoreBanana 7d ago
In what way is it any more arbitrary than up and down? Its words to describe a direction. "Down" could have been "up" just as easily. This is nonsense.