Why? Because they looked at the curve and said, if the population keeps growing at this rate, to move the population of New York around, they would have needed six million horses, and the manure created by six million horses would be impossible to deal with.
Spojrzeli na wykres i orzekli, że jeśli populacja nadal będzie tak rosnąć, to żeby zapewnić jej transport, potrzebne będzie sześć milionów koni i gnój od tych koni byłby niemożliwy do ogarnięcia.