"99.9999999%" means "almost always". It isn't a precise calculation, which you know. Just look at the US arrest statistics. See how many total arrests there are

"99.9999999%" means "almost always". It isn't a precise calculation, which you know. Just look at the US arrest statistics. See how many total arrests there are annually and ask yourself how many of those could be for "no good reason". Even if it's a high percentage like 10%, it is still very unlikely to occur to the average person.