could you consider the shadow behind the glass as neutral? as a slave for the being of the glass?

something that just is because it has to, because it is the law of the nature?

or is it simply a construction - our perception of what is "the shadow of a glass"?

maybe it´s simply the sun being blocked by a slightly transparent media. and is the sun neutral?

why do we ask ourselves all these questions? is it because we "have to", because we were given this assignment? is neutrality necessary? is a question neutral? is an answer neutral? and depending on what?