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> The upper-eye bias is much weaker at a 90-degree rotation. "Ninety degrees is too weird," said Davidenko

No kidding! I'm trying to imagine someone talking to me with their head tilted completely to one side.

I would be rather surprised if someone could tilt their head 90-degrees even briefly, let alone hold a conversation like that. I think for most people anything over 45 degrees starts to feel very uncomfortable.

Uh....are you overweight, by chance?

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