Planning theory is unresolved.
Still others practice their own modern versions of the traditional approach completely without the aid of any well-developed theory at all. A literary dialogue that moves increasingly away from the issues that originally brought comprehensive master planning into question only serves to perpetuate these problems. It is dangerous for such a state of affairs to persist. Without a common theory grounded in tradition and at the same time reflective of modern understanding, planning knowledge is left unorganized and planners cannot attack the problems and challenges of the day with the fullest possible service of their intelligence. This can be accomplished by quoting two writers who have considered these matters and with whom the author is in complete agreement.