Oddly enough (and OK with me) we don't talk much Covid19 stuff on this forum, but I found this interesting and reasonable, thought it worth sharing........
The only BIG fall down on this one is the contact tracing. Only works if people comply ie China. Big Brother is watching you I cant see this happening in USA.
I hope no one expects me to keep track of who I come in contact with. I can't remeber half of the things that happened today!