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Problem... this broadcast approach isn't particularly helpful unless all cars have it. So to add this TCAS style solution to all cars might cost what? $100/car in equipment alone? For all 263 million cars in the US that would be $26 billion. Seems pricy when Tesla has a system today that solves this problem without all that infrastructure, or the privacy concerns?

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the broadcast system is certainly helpful if less than all cars have it. The proposal estimates the cost per car at 100-300 dollars.

> Seems pricy when Tesla has a system today that solves this problem without all that infrastructure, or the privacy concerns?

Solves it for those cars, and certainly at an expense higher than 100-300 cars. And it will only get better as it gets information from other cars.

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