It looks like New York has measles. But there's the 'clumpiness' of society, networked into hubs, as plain as…

It looks like New York has measles. But there's the 'clumpiness' of society, networked into hubs, as plain as the nose on your face. h/t @DavidJoffe64 and @ejustin46 https://t.co/K59WbtGzso