This was my take in Feb/March Each of these things is harder to do than the thing above it: Close off foreign travel Quarantine foreign travelers in gvt facilities for the incubation period [massive jump] Test foreign travelers, contact trace their contacts, q after + testhttps://twitter.com/RokoMijic/status/1317210055658307586 …
I think it comes from one of the George Mason economists recycling original Moldbug and making it more palatable. It's a great formulation.