As @NHSX plunge ahead with the #trackandtrace app, here’s a helpful set of basic issues:
(1) “Self reporting” undermines trust in the app
Most “pings” won’t result in illness. If people know the reports aren’t reliable, they may conclude the app’s pings are junk. #covid19uk
(2) BlueTooth battery issues will persist
Despite government claims it is unlilkely @NHSX have fully solved this problem as the device will need to 'wake up'. Battery drain may be worst in commutes, in busy streets etc.
Most governments are going with Apple and Google’s baked-in solution. This makes solutions like the UK’s unable to work with most of the rest of the world.
Cross-border contacts get more important over time.
This was admitted by @NHSX to @rowlsmanthorpe today. Essentially the junk idea of self-reporting which has nothing to do with lack of testing capacity forces the centralised approach.
CONCLUSION:
This @NHSX App has been designed arse about tit, as it were, and now we have to suffer the privacy / usability / efficacy consequences.