> If all you're trying to do is sum all the elements in a list, neither 
> approach has a really compelling advantage or disadvantage. I used it as 
> an example of a simple task that anybody can easily understand, and used 
> it to illustrate the difference in mentallity between the two approaches.

I guess the difference would be in more complex examples then, when both the 
human C++ coder and the Haskell compiler have to work harder to get 
efficient code.

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