I still don't get it....[later] maybe I do...

to fib: 5 okay

fib: 5 right...

fib: 4

fib: 3

fib: 2

fib: 1

x: 1 y: 1 that makes sense

fib: 2 and this

x: 2 y: 1so finally x's x is 2 (1+1)

fib: 3y's x (?)

fib: 2

fib: 1

x: 1 y: 1

x: 3 y: 2x is 2+1, y is 1+1

answer: 5

Is that right? I'm shaky about the last bit.