Response to Steven Landsburg:
The main point Steven made was that M is at least as important as $A$. How to reduce M? (the interaction between public servants and ordinary people)? That, as Steven correctly pointed out, is in the hands of people. The servants just serve what you need. If you reduce what you need, you can fill your supplies to the household capacity less frequently and thus reduce $M$ locally in the matrix $A$ (at last I have enough preliminary explanations to speak in the language in which I think). Example: I eat mainly grain now (bought a few bags at Costco some time ago). That produces zero garbage emission, so my garbage bin fills slowly and I can put it out, probably, 5 times less frequently, so most of the time the truck bypasses my house and I am not afraid of contaminated garbage been 5 times longer than an average person, so I have an egoistic incentive to do it as well. Besides, I just have no supply of required garbage bags :-) ). That potentially reduces M five times for the garbage pickup part of $A$. And that is where the virus teleports: the garbage trucks go everywhere. But it teleports at the speed of car and we can teleport ideas at the speed of light (Internet). The proposed modus operandi for propagation of thought is exactly what I posted in the beginning: share your thoughts on what to do in the widest network available to you where you have enough reputation to be listened to. We'll fight the car teleportaion of virus with the light speed teleportation of ideas. That is not even restricted to country: explain to your friends everywhere what is going on, what's the global strategy, why you are doing what you are doing to support it, and talk to them in the common language between you and them trying to keep it as simple as possible, but not simpler than that. Everyone is free to implement the rules that are not weaker than the current regulations in his household (I follow max(Israel,Ohio)) and think how to advance them more. That's why the government does not impose the draconian regulations itself. They hope that graduate reduction will be met by gradual self-restriction and we'll bargain not at the strict line but on a curve allowing freedoms where they are needed and using freedoms only if they are needed. That's the advantage of democracy, used properly. The advantage of dictatorship is the speed of bargaining. What we'll get depends on how we act.
If you get lost, please don't downwote, just ask questions :-)