Ah Tom, I think I see the issue you are having with Ray. You think in terms of “knowledge” and of integrating knowledge into a logical whole. But that is not science , it is philosophy.
Science is always analyzing and describing what the experimenter is observing. It is an activity which produces knowledge “objective facts’ but that activity, as activity, is not knowledge itself. Why you might ask? Well, because, like a river, Reality is always changing. Thus your ‘expression’ tries to make change static.
I hate to tell you but professional scientist will always balk at this. People like to objectify the world, they don’t like seeing themselves objectified.