It's kind of useful to write out code by hand, or at least pseudo-code...I'm not a neuroscientist but I wouldn't be surprised if it turns on a different part of the brain. Last week I was sitting in the park with nothing to do and I reflexively pulled out my iPod to play Sudoku on it. Since it was one of our first nice days I felt bad about that so I just wrote out the Sudoku grid on a pad of paper and solved it from there. It was surprisingly difficult, even though it was an easy puzzle (the iOS version highlights which minigrids on the main grid that a given number appears in for starters).
Anyway, anytime I think about what a pain in the ass writing, or even just typing out code can be, I refer to the chapter in iWoz in which, lacking development software at the time, he "wrote out the software [for Little Brick Out] with pen and paper and then hand assembled the instructions into 4096 bytes of raw machine code for the 6502"
There is a psychiatric condition known as 'graphomania' in which one has an obsessive compulsion to write, the content being secondary in importantce. So it's conceivable that such a structure in the brain exists and can become overstimulated.
Anyway, anytime I think about what a pain in the ass writing, or even just typing out code can be, I refer to the chapter in iWoz in which, lacking development software at the time, he "wrote out the software [for Little Brick Out] with pen and paper and then hand assembled the instructions into 4096 bytes of raw machine code for the 6502"
http://en.wikipedia.org/wiki/Integer_BASIC