v21’s avatarv21’s Twitter Archive—№ 64,373

    1. one underdiscussed consequence of doing a decentralised contact tracing app is that to manage false positives, you really want to only send out alerts when someone has tested positive for covid, not when they've self-diagnosed.
  1. …in reply to @v21
    (because you can't filter at the point when someone would get a notification of contact, only at the point where someone sends an alert that they might've spread it)