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: 1 so finally x's x is 2 (1+1)
fib: 3 y's x (?)
fib: 2
fib: 1
x: 1 y: 1
x: 3 y: 2 x is 2+1, y is 1+1
answer: 5
Is that right? I'm shaky about the last bit.