3) false positive are a hell of a lot better than having no way to trace back contacts while someone was asymptomatic but contagious.
4) it helps stop others from becoming infected and possibly dying. how is that not a good thing?
> We should be 3D printing ventilators, analysing DNA sequences, build nanorobots and synthesis new molecules.
3D printing ventilators is a horrible idea, and everything else towards a vaccine takes _time_. This is something that can be rolled out today and that will help the situation. You can uninstall the app when this is over.