Anybody looking at coronavirus data right now must feel very confused. The UK has a daily case count 60 times higher than Australia. Italy has a case fatality rate 3 times higher than nearby Greece and 12 times higher than Pakistan. These heterogeneities seem massive and have the potential to teach us critical insights about the disease. But as any epidemiologist will readilyacknowledge, these statistics are terribly confounded by inconsistent reporting protocols and variable testing ability,...
