11/n It makes sense when you remember that Google mobility data tracks CHANGES, not absolute figures. So 50% of the population working from home 100% would reduce office mobility by 50%, but only increase residential by a fraction of that amount
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22/n That being said, the idea that this study disproves staying at home as a driver of COVID-19 mortality is obviously wrong - at best, it is an example of how difficult answering that question can be
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"this is a hard question that we may never answer well" Exactly, there are so many dynamic, observables and unobservable variables involved, I don't think we'll ever come up with a great answer.
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Of course there are also papers showing that mobility data, duh, correlates very well with the reproduction number and predicts it better than anything else. But those don't count for people spreading disinformation.
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