To a degree i accept this, however it seems to me to be a bit like claiming:
Every equation has been tried before, only different styles in equations will make you stand out.
True to some extent, but the main point in an equation (and maybe also in writing) is not the form of it, but the variables it links together.
By which i mean that in literature there are countless variations of variables to be linked. So i am of the view that not even 1/10 raised in some vast power, has been written yet