One aspect of widespread daily testing I hadn't thought of, is that testing yourself to make sure you are not going to spread the virus does not mean you won't catch the virus once you leave the house! Maybe everybody who tests negative should wear their negative paper strip on their forehead when they go out in public? Sort of like an "I voted" sticker.

Or maybe it's enough that all daily testers just shun people not wearing masks. Testing changes the whole mask equation: Instead of wearing the mask to protect others from you, people would be wearing the mask to insure they get a low viral load if they do get infected. Looks like that is a real advantage.

The original and perhaps best goal for daily testing is to make schools a "safe bubble" each day. Certainly offices and factories could do the same. It really would open up the economy, so you would think that both sides of the political divide would support it.