Hence the need for numeracy. You need to be able to do a little bit of thinking for any given number, the context, etc. For example, think about all the people you know, and also how that 0.01 might not be a random sampling of the entire population, but "cluster" in certain cohorts like the elderly, and consider that 0.01 is the worst-case outcome, but in many situations more will still have really bad consequences.