Much more powerful apps are in use or were used flexibly and effectively in China and Korea, Taiwan, etc. We in the U.S. never really tried them, but then we also simply no longer do tracing and contact tracing, or even quarantining. We essentially abandoned all that. We will survive anyway, of course, but with many more cases and deaths than in once thought to be ābackwardā Asia.
Such a system canāt be used effectively here because our people seem to be much more afraid of āBig Brotherā than of the virus, and even our āBig Brotherā is more afraid of its own citizens than of the virus.
Just imagine what would happen if we faced a virus that really had, say, a 10% fatality rate ā and hit young people equally with the old. Such a āBig Brotherā system then, I believe, would prove crucial.
In China, where teeming cities are filled with high rise apartments filled with small apartments where three generations often live together, the threat of COVID was much greater. When the virus was still spreading, not well understood, and extremely feared, phone apps were developed there that became central tools of the health authorities.
In major Chinese cities notice of the location of every discovered case in every neighborhood was automatically sent out, so everybody knew if somebody working at the local pizza shop got infected, or in your housing complex, or at your childās school. If you were sick or were tested the results were automatically placed on your app, so you might have a āredā code. With such a code you were in quarantine, could not enter the subway, a department store, travel to another city, etc. Of course you could eventually arrange to have another test and get upgraded to a yellow or green code. Codes were checked everywhere, and this proved highly effective in isolating individuals and ending the virus spread ā it allowed China to end total lockdowns in many cities early and with more confidence. It wasnāt all smooth, but with mask wearing and social distancing too China rather quickly stopped all spread of this tricky often non-symptomatic virus.
Just thought Iād outline what I know worked in China, which of course has a more obedient population, much more powerful government control, more experience fighting epidemics, more volunteers willing to be mobilized quickly, etc., etc.