English alphabet has 26 letters. A word is just a finite sequence of letters. A sentence is just a finite sequence of words. A paragraph is a finite sequence sentences. It only suffices to say that there exists only a finite number of paragraphs possible (could be billions) but fewer yet exist which have been accepted to represent ideas phonetically by the spoken language. As the number of creative people grows, each producing a unique quality work in form of a set of paragraphs, it suffices to SAY, that the pool of available paragraphs will start to deplete. As a result it will be harder to come up with something more creative and original, plagiarism will rise (whether intentional or not) and the language as a whole will become stagnant. It still may take a couple hundred years, but do you think something like this will happen? Or will new words introduced in the dictionary be enough to revitalize the language?