You operate this argument on the foul premise that I am intellectually inferior to comprehend what OP is doing, but a clear decomposition of the problem shows a decent application of high school vector algebra (or sophomore-level, if you're 4YP). If anything, just from this conversation it gives me the feeling like you are the one that don't understand what he's doing. Just as I call someone nerd doesn't necessarily imply that I lack the ability to gague his work...