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Weird proxy to illustrate the problem with lockdowns. On the one hand it's a huge city, so there's lots of people who could be buying cars, but on the other hand... it's a huge city, so you probably don't need a car?

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This data is already collected and aggregated (e.g., for issuing license plates), so it's probably more that it was handy than it's a perfect proxy.

I guess, but after seeing videos of people screaming from their balconies because they can't leave their homes even to get food https://www.independent.co.uk/asia/china/shanghai-residents-... it seems odd to focus on no one buying cars.

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