Certainly this https://abs.twimg.com/emoji/v2/... draggable="false" alt="👇" title="Down pointing backhand index" aria-label="Emoji: Down pointing backhand index">

What are the ACTUAL problems we are trying to solve here? [N.B. These may not be the same as what you& #39;re being told...]

And on which of these problems will any particular approach have any effect *in reality*, not just in theory? Plus what are the trade-offs? https://twitter.com/guy_herbert/status/1248158105231335430">https://twitter.com/guy_herbe...

Top line: we get through to availability of a #vaccine (12-18 months) at which point #MassVaccination (60%+) gets us #HerdImmunity. #COVID19 becomes the & #39; #FifthFlu& #39;, *people still die of it*, but we clean up the mess and carry on in the & #39; #NewNormal& #39; - with a shit-ton of #PTSD...

So where do & #39; #apps& #39; get us?

The #surveys (so long as they& #39;re properly designed, run well by the right people under ethics approval & they ask the right questions: https://docs.google.com/document/d/1XjKrimQHjnATctZIiuqdaqfc0daiq6tlcFddSupPg60/)">https://docs.google.com/document/... MAY allow us to do some #science, but plenty of & #39;em are little more than scams/datagrabs...

The #ContactTracing apps are the second wave. The premise of them is that they can act as some sort of & #39;virtual #HerdImmunity& #39; - assuming perfect, instantaneous transmission of isolation advice via smartphone using various means of inferring infection (mostly time + proximity)...

..there are LOTS of dependencies for #ContactTracing apps to have even minimal effect - some of which we won& #39;t even know until after they& #39;re in use! Which is why all the sensible people are saying use temporary random IDs, put the logic on the phone asap, etc. Are #TracingApps...

..a "cure"? Clearly not. Much help? Probably not, unless linked to mass #antigen testing (i.e. to check someone actually has the virus in their body). #OOPS!

So why do it? Because (a) Gov& #39;t has to be seen to do s& #39;thing, (b) some like shiny things, (c) "It& #39;s the economy, stupid."