We'd have maybe a reasonable description of what we're describing, but what if more than one car passes in a minute? And they said, oh, let's make this per second, and this is the probability of success per second. But then we still have the problem. More than one car could pass in a second very easily. So what we want to do is we want to take the limit as this approaches infinity, and then see what kind of formula we get from the math gods. So if we describe this as a binomial distribution with the limit as it approaches infinity, we could say that the probability that x is equal to some number, so the probability that our random variable is equal to, I don't know, three cars in a particular hour, exactly three cars in an hour, is equal to, oh, we want to take the limit as it approaches infinity, right? The limit as n approaches infinity of n choose k. We're going to have k moments in time, right?