| Descriptivism breaks down when encountering jargon. Consider the phrase "begging the question", for example. The phrase means something specific when discussing logical syllogisms, and was coined by academics as a piece of jargon to refer to that particular concept. Even if everyone who doesn't know what a logical syllogism is, now thinks that "begging the question" means something entirely different from what those academics mean, that doesn't mean that the phrase has lost its jargon meaning. You can't redefine away jargon. Jargon gets written down into scientific papers and people continue to read and cite those indefinitely, so the jargon use of the term gets promulgated in academia indefinitely in order to understand those papers. Yes, there is a lay-term "introvert" that now means something pretty much non-differentiable from "shy." But that's irrelevant when the useful term isn't the lay-term, but the jargon term. To think otherwise would be like expecting a biblical scholar to stop using the word "apocalypse" to refer to the set of apocryphal texts of the Bible, just because the lay-term refers to an eschaton event. Yes, lay-people will think you mean the wrong thing. But the solution to that is not to abandon the jargon word, but rather to specify that you're speaking academically and that you intend words to have their jargon meaning; and to terminate the conversation (or, grudgingly, teach an entire intro course to the academic subject to your interlocutor) if they don't know the appropriate jargon. |