mathematics

Basic math, from fish to infinity

I know, this has nothing to do with indexing, but I really like Steven Strogatz's writing:


The best introduction to numbers I’ve ever seen — the clearest and funniest explanation of what they are and why we need them — appears in a “Sesame Street” video called “123 Count With Me.” Humphrey, an amiable but dim-witted fellow with pink fur and a green nose, is working the lunch shift at The Furry Arms hotel, when he takes a call from a room full of penguins. Humphrey listens carefully and then calls out their order to the kitchen: “Fish, fish, fish, fish, fish, fish.” This prompts Ernie to enlighten him about the virtues of the number six.

Children learn from this that numbers are wonderful shortcuts. Instead of saying the word “fish” exactly as many times as there are penguins, Humphrey could use the more powerful concept of “six.”