// Hacker Noon · 2 April 2026

Why Water Became Our Universal Reference (and Why O Coins Use It)

After the French Revolution, the new metric system tied the kilogram to water: originally, the mass of one liter of water under carefully defined conditions. That was not random. Water is everywhere humans live, the common denominator of life on Earth, and the one thing we all need regardless of cul...

Hacker Noon

@hacker-noon · Christophe Normand

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