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  • Benjamin Sjavik thinks this is interesting:

Then, a mere 6,000 years ago, ancient Sumerian commodity traders grew tired of getting ripped off. Around 3200 BCE, one of them had the idea to track accounts by scratching wedges in wet clay tablets. Cuneiform was born.

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Cover of Conversational Design

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This is up for debate, but it doesn't affect the argument on the whole