Sorry Nuance, Recursion is NOT a loop.

Recursion works by building up the stack,
delaying evaluation until the end.
A loop evaluates as it goes. There is a big difference
between the two.

Think about it this way: The recursive
method that I posted says to add the first number to the
sum of the other numbers. That can't be done until the sum
of the other numbers is known, so it puts the number on the
stack and trys to sum the other numbers by the same method.
It does this, pushing the list onto a stack, until there is
only one number left, then it sums the stack. This is not a
loop. Its not even close.

Comment onRecursion is not a looping construct.