The Fibonacci Word is a sequence of ones and zeroes that never repeats. It starts like this: 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0... and so on forever. It's called the Fibonacci Word because each number is determined by the number before it. If the number before it is 1, the next number is 0, and if the number before it is 0, the next number is 1.