Nobody expects this crop to save the agricultural business in Hawaii.  Your argument is fallacious....neither sugar or pine saved the agricultural business in Hawaii.  Sugar and pine to use your word had not been "vibrant" since the mid 1960's.  Sugar and pine were the demise of the agricultural business.  Why should hemp save agriculture?  Much to do about nothing.  Hemp is a renewable source of food, energy, and jobs will be created.  No much to understand about that.  It too may be replace by cabbages or cauliflower when it serves no economic purpose.