I’ve never heard or saw this before wow
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one morning I'm going to wake up, all the street signs are in Mandarin, China has taken over the world and no one batted an eyelid

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The reason why we don't learn it here is because it easily locks out certain demographics from learning math. That's why here in America they admonish you for using that technique if they see you doing it in grade School it's a form of cheating as far as they're concerned
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