The Number That Shouldn’t Exist — But Runs the World
Imagine, for a moment, that you are a merchant in Baghdad, year 825 AD. You’re counting your camels. You have ten. You write “1” and “0” — and a visiting scholar named al-Khwarizmi watches in horror. “You wrote nothing,” he says. “Exactly,” you reply. “The nothing is doing all the work.” That conversation — or […]
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