Seven Languages in Seven Weeks: Day 4

Io is the second language covered in Seven Languages in Seven Weeks and it is substantially further off the beaten path than Ruby was. The first day's worth of exercises didn't really have anything code snippet worthy, so here's recursive Fibonnaci to prove that I got the VM running ;-)

Fib := Object clone
Fib fib := method(n,
    if(n < 2, return 1)
    return self fib(n - 1) + self fib(n - 2)
Io> Fib fib(6)
==> 13