Shows two people in front of a graph, one male and one female. The graph is of number of husbands vs. time, and it shows a straight line through the points "yesterday" at 0 husbands and "today" at 1 husband.
Male: As you can see, by late next month you'll have over four dozen husbands.
Female: Hold on — shouldn't you be using more than two data points?
Shows another graph like the first, this time with more days before "yesterday" at 0. Instead of a straight line, there's an exponential curve which stays relatively flat until yesterday, then goes up even faster than the linear curve after today.
Male: Oops. You're right.
Title text: I don't think that approximation is exactly zero at all those points...