This is a novel and possible solution. I don't believe it, but it would solve the problem. Thank you for the contribution.
True, but abstract thinking would relate to constructing and relating to a "superstructure" of ideas with the concrete world as a point of reference.Concrete knowledge is the basis for insight in N types, too.
i.e. debating and understanding, general truths and ideas, rather than a very specific novel idea regarding a farm.
True, a specific advance can come from a general idea. But in those societies, was/is there a possibility for abstract thinking, from which the N could then draw their ideas for application to concrete reality?