This has to work even if network reception is weak or absent. You can't be certa... | Hacker News

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		zestyping on Aug 24, 2021 \| parent \| context \| favorite \| on: Welcoming our first riders in San Francisco This has to work even if network reception is weak or absent. You can't be certain that 100% of cars will receive the signal and get themselves out of the way in time.

lwf on Aug 24, 2021 | [–]

Right, so don't use the network: broadcast a signed message on a band reserved for emergency services.

tuatoru on Aug 24, 2021 | [–]

> This has to work even if network reception is weak or absent.

Or hacked maliciously.

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