Jonathan
Congratulations for this well reasoned, sensitively expressed essay. Everything you said rings true - I admire your stamina in examining all the possibilities that the essay question invites and as it were answering them simultaneously with a koan-like wisdom.
As Edwin also stressed, you mention the focused and scientific way small children try to understand things. As we grow older we lose a lot of subtlety as our minds cling to one overriding theory or another. This is an important period for physics and an open-minded 'philosophy' of knowledge such as yours is very important if long held theories that do not quite work well are to be replaced by better ones.
Your thinking seems to be influenced by "The Tao of Physics" a marvelous book. Having lived in Japan for the past 42 years I can testify that religion and the language it is expressed in has a great influence on how we think, about science among many other things. This is a broad off-topic subject but it came to mind. You yourself quoted the Native American myth so I think you agree.
I expected but did not find a reference to a Yang-It-Yin-Bit!
With best wishes
Vladimir