> Internal traffic among 4 million people is a much easier problem than traffic among a continent of 800 million people. Can you fill in the details of how exa

> Internal traffic among 4 million people is a much easier problem than traffic among a continent of 800 million people. Can you fill in the details of how exactly it is easier? > Quarantining between shipments would mean drivers are mostly idle, driving the cost of shipping through the roof. Well, if they don't need to sleep between shipments, I guess they can drive back directly and get their supplies and food at home. I wasn't suggesting a full two-week quarantine if they don't intend to have any contact with locals anyway, just staying for the night isolated from anyone they could potentially infect.