Urm.. I can understand what you mean about the calculus analogy, that when you are trapped in more advanced thinking then you naturally assume that a more complex solution is neccessery. I am just learning calculus, so I can't comment too much, but I can tell you that in GCSE exams there are some p*ss easy questions and you think 'is this a trick question' because surley, there must be more to the question than this. Or so the thinking goes. There was that other period when I was constantly practicing hermeneutics following reading some complex literature and then I was listening to black sabbath at a friends house interpreting the lyrics in a way which was MUCH too complex and looking back, it was actually quite amusing how I interpreted 'fairies wear boots' to be a philosophical critique of pure reason as oppose to an acid trip. Of course, if you know Aldous Huxley, it may well be both
However, I have not found this pattern to be true with magic. The more I know, the less I need to over-think. When I first began, I had ludicrously complex solutions to everything. Now I know more, I know of course, that simplicity is best.
I'm not sure exacltey why, but I think it is mainly because in calculus and in literature, your brain learns 'this is not easy' and latches on to a more complicated perspective of things. With magic, the more you learn, the more you end up thinking 'well that is so simple! There is no need to over-complicate things'.
''To go wrong in one's own way is better than to go right in another's.'' Dostoevsky's Razumihin.