[antpls]

It could only work if everyone wear a phone. And then what's next? Forcing everyone by law to always wear a phone at all time?

I would rather see new phone sensors that scan the air, the breath and the body for diseases than a new tracking technology. We could also develop new medicines, etc. Not tracking.

Edit : we also don't have much knowledge about why the virus is more lethal for some people than others. We should focus effort at predicting who will be asymptomatic and who will develop complications, rather than trying to stop the virus from spreading by isolating people