I'm still thinking about how this guy is the kind of Christian conservative who thinks it's even POSSIBLE to know more mathematics in AD 800 than now Like the actual massive, gigantic advances in math since then are all just passing fashionshttps://twitter.com/johnpauldickson/status/1278997229068406789 …
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In the 800s just being able to add and subtract large numbers like that was very hard for Europeans, it was a specialized skill, you needed a tool like an abacus to do it A ten year old who can do long division has superpowers compared to them, never mind having a calculator
Thanks. Twitter will use this to make your timeline better. UndoUndo
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its also basically what an abacus was used for
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My father in law kept using an abacus for quite a while when he went into business in the US. He just preferred it over a calculator, even when they got cheap.
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