Personally I'm more familiar with the phrase wax lyrical, but it sounds like the meaning is very similar. If one were to wane lyrical/poetic, do you think one would enter into some sort of linguistic retreat while remaining poetic, or would one become less and less poetic?
Are you a math major student?
Well, I'm not a language expert. I'm a physics major student ... my speech is influenced by math/physics... In the physical world, objects increase/grow or decrease/vanish or die ... the moon waxes and wanes, etc.
Since the expression "wax poetic" exists, I wonder whether it makes sense to ask, "could one wane poetic?"
I'm a physics student in fact. Your question seems reasonable to me, I'm just trying to work out exactly how wax is used in the original phrase, so that I can decide what I think the opposite, wane poetic should mean.
When one waxes poetic, does one wax and wane while remaining poetic, or does one remain constant while the poetry waxes and wanes within us?