If you gave a person a penny on day 1(infection) and double that on day 2(2 infected); then you double the infections every day(I mean pennies), in 30 days, you'd have 1,073,741,823 "pennies". Even if you doubled it every other day for 30 days(15 doubles) it would be 32,767 “pennies”. This is the old “would you take a million dollars or start with one penny and double it for 30 days” and figure out which one you’d choose. If you use that logic on a pandemic scale, we’re a bit shy of that amount. Especially considering the CDC has been tracking Covid-19 since January 21st. http://mathforum.org/dr.math/faq/faq.doubling.pennies.html