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How Uber Finds Your Driver in 100ms (Hexagons Explained)

0 วิว27/08/2026

Uber finds your nearest driver in under 100ms, out of millions of cars, using an open-source hexagonal grid called H3. In this teardown: why measuring every driver is too slow, how a hex grid turns millions of checks into a dozen, and why hexagons beat squares (all 6 neighbors are the exact same distance away). H3 is open-sourced by Uber: https://h3geo.org Under the Hood is a weekly series breaking down how real systems actually work. What should we tear down next? Stripe, Discord, Figma? #SystemDesign #Programming #SoftwareEngineering #Uber #Backend #ComputerScience
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