He doesn’t present an alternative hypothesis though for why (Or maybe it’s implied that this is somehow the natural order of things?) I’m guessing he’s looking

He doesn’t present an alternative hypothesis though for why (Or maybe it’s implied that this is somehow the natural order of things?) I’m guessing he’s looking at modern proto-pandemics, because you only have to go back to 1918 to see exponential part of the s curve last longer than two weeks. Wouldn’t the null hypothesis than be in these modern times, where we understand germ theory, people start naturally practicing social distancing due to fear? Otherwise what action is slowing virus contagion?