## The McCall Initiative: Bonus Material

In Episode 6:

So what exactly is the Fibonacci sequence? It's a series of numbers in which each number is equal to the sum of the two that proceed it. For example, 0+ 1 =1, 1 + 1= 2, 1 + 2 = 3, 2 + 3 = 5, and so on.

Here's a list of some of the Fibonnaci numbers: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10,946. As you can see, they get big pretty quickly. By the time you get to the 26th one, you're at 196,418. As Zoey points out, this makes for a code that isn't particularly useful. Her attempt at a solution was to figure out which letters of the alphabet are most commonly used and assign the smaller numbers to those. Here's the code she came up with:

*Desperation*, Zoey deciphers a message written in a code she developed to send notes to her father when she was younger. This code is based on the**Fibonacci sequence**, a mathematical concept related to the**golden ratio**. Evidence of both of these can be seen in such natural phenomena as the branching of leaves on a stem, the scales of a pine cone, and the family tree of a honey bee. The golden ratio has influenced architecture, art, music, and even book design. While there are those who claim there's too much**inaccurate hype**surrounding the Fibonnaci sequence, there's no doubt that it's an interesting concept.So what exactly is the Fibonacci sequence? It's a series of numbers in which each number is equal to the sum of the two that proceed it. For example, 0+ 1 =1, 1 + 1= 2, 1 + 2 = 3, 2 + 3 = 5, and so on.

Here's a list of some of the Fibonnaci numbers: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10,946. As you can see, they get big pretty quickly. By the time you get to the 26th one, you're at 196,418. As Zoey points out, this makes for a code that isn't particularly useful. Her attempt at a solution was to figure out which letters of the alphabet are most commonly used and assign the smaller numbers to those. Here's the code she came up with: