This is no doubt the most controversial aspect of DP. Indeed, there are a number
of myths regarding the meaning and validity of the Principle and its exact role
in the theory and methodology of DP.
Given the long history of this controversy, it seems that it would be best for
persons interested in this aspect of DP to consider the basic facts rather than
continue the spread of speculations and unwarranted claims on this topic.
The basic issue here is not whether Principle is valid or invalid, but rather
how it can be best used to explain what DP is all about (Sniedovich, 1992).