This is exactly the kind of situation where you want public health authorities to have cell phone location data, however coarse-grained it is, to create a list of possible contacts. Note that a bluetooth contact tracing app would be (even more) useless in this case https://twitter.com/samdolnick/status/1259491120188456963 …
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The kinds of questions we need to answer are not "did I come within an arbitrary distance of an infected person" with seven layers of cryptowank to make sure nobody learns each other's names, but "who was at or near this venue last Saturday, and how can we reach them?"
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Replying to @alexstamos @Pinboard
I am here for the arguments about privacy protections, dangers and sunset clauses but 10,000 (one cell tower) sounds much smaller than 10,000,000 (Seoul) to me. (The other question that
@pinboard asked that I don't know yet is who has this info anyway without oversight?)2 replies 0 retweets 1 like -
Also, a bluetooth contact tracing, widely deployed, would be better: far more precise than tower dumps for "who was in bar X at time T." But I think South Korea may have more precise info then tower dumps, eg, the Call Center X study said they notified those near based on cell
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This is WAY more than a tower dump: (from the Call Center X case)pic.twitter.com/lGvv7WTwp5
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Well whatever they have, it’s efficacious. Without fast contact tracing at scale , the working poor who cannot stay home are doomed. The presymptomatic transmission window gives you maybe 24 hours max two days to trace contacts and isolate them. That’s the discussion we need.
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