Although in essence it is very simple, the full implications are often overlooked. This is the fact that, out of necessity, there do exist basic boundaries in which the English language fluctuates and flows while readjusting to modern usage. It is, if somewhat abstract, self-sufficient. In answering these questions he maintains that the reason lies in the fact that not many people see such control as desirable and even very practicable. Non-native speakers of English will naturally conform their use of English to meet the demands of the environment or situation with which they are most often confronted.
Flexibility is integral to a dynamic, living language.
The boundaries of the norm are obviously quite broad - encompassing all forms of comprehensible English. But they do nevertheless exist. The fact that English remains fluid and flexible within the norm is a healthy sign of a living, dynamic language. This is necessary for survival for no rigid language would, nor could, be grasped and accepted by such a variety of peoples with differences in heritage, culture, attitude, social environment, etc. In the resuscitation of old affixes and in the creation of new ones English is showing these synthetic powers.