Q. Why do people often seem to have problems admitting ignorance?
A. No doubt because they don't consider themselves ignorant.
Thank you. That answers one of my questions, although I do think sometimes at least individuals initially think they are sufficiently knowledgeable about something but when confronted with evidence to the contrary they realize they don't know as much as they thought but don't wish to admit this.
In fact, this raises another point. Most information one comes across (in conversation, in school, on a discussion board, in a newspaper, etc.) is wrong. For example, I remember it being common knowledge when I was a teenager that the most poisonous spider was the daddy-long legs but that it wasn't dangerous because the length of its legs prevented it from biting you. Most people, however, when told that the daddy-long legs isn't even a spider, let alone poisonous, have no problem admitting they didn't know as much as they thought. In general, I think most people most of the time will, when they assert X because e.g., they heard it somewhere, will yield to somehow who appears to really know. This is as true of facts about sports (e.g., how many homeruns Mantle made or the number of superbowls the patriots have won) as it is academic fields. Some people will insist they are right about just about anything (my brother-in-all tends to do this) but I think most people are perfectly willing to accept a statement they made is wrong if they aren't really knowledgeable and it seems like the other person is.
But in particular cases, the opposite is true. For example, I've seen individuals whose knowledge of physics doesn't extend beyond popular sources contradict a quote from a textbook or physics journal, or claim that the Greek of some NT passage really means X even though they don't know Greek. In the case of religious texts, I get it: if religious belief is anything, it is certainly ideological in nature. But when it comes to e.g., machine learning, neuroscience, QM, etc., I don't understand the reason for insisting one is right when confronted with contrary information.
In your case, although you may have a better understanding of a subject than they do doesn't necessarily mean they recognize it. And why should they?
You don't think it is possible to recognize when somebody seems to know what they are talking about? Certainly, there are cases in which two people disagree about a topic neither is an expert on and it can be hard to establish whose knowledge is greater, and additionally greater knowledge doesn't necessarily translate into being right (especially when the difference is small). But it seems to me fairly obvious most of the time when members are experts in some field or knowledgeable about it. I've never doubted that Copernicus really is a professional linguist because it is obvious to me from his posts that he knows of what he speaks. Same with angellous_evangellous and NT studies (even before I read his dissertation), viole with mathematics, Revoltingest and engineering, Caladan and archaeology, Meow Mix and cosmology (and physics), Quintessence and biology, etc. And of course all of these members and others are knowledgeable about subjects related to their fields (if they are in a field) or subjects they have studied (e.g., I know Shadow Wolf has a degree in psychology).
You seem to delight in pursuing subjects on a level above that of the casual layman, filling your posts with jargon and explanations that take more than a casual familiarity to grasp
No. I don't like doing that, but I am terrible at simplifying. I also usually communicate with other specialists who also use jargon and technical explanations, which doesn't help. Occasionally, I will use technical explanations on purpose (usually because I am being petty out of irritation) so that if the other person wants to tell me I am wrong they have to go beyond e.g., linking to Wikipedia. Often, I will use explanations from the literature rather than my own because I know that I am terrible at simplifying and at least as bad as being concise. Additionally, I don't like to appeal to personal claims of expertise, so I appeal to expert literature.
Yet people are willing to discuss stuff with you.
Sometimes. Often I find that I am simply continually contradicted and my arguments dismissed or ignored, or better yet frequently I find someone denying the accuracy of a quote from specialist literature I have used so that nobody need take my word for some claim.
But I'm not really concerned in this thread with my interactions on the formus or in general. I'm not even concerned with why people act as if they are knowledgeable about academic subjects specifically. I was thinking about this when talking with a friend who works in the Registrar's Office in a university in Massachusetts. She has several coworkers who constantly answer questions about e.g., student records or degree requirements or whatever that are wrong. They don't know what they are talking about but that doesn't seem to prevent them from giving false information rather than asking her (my friend) what the answer is, or asking someone else whose job it is to answer such questions.
To be clear, my friend isn't an academic; her position in the university is a staff position not faculty. The co-workers who act knowledgeable when they aren't likewise aren't academics nor are they dealing with questions concerning some academic field. My point with this thread is far more general then my interactions here or people who act knowledgeable about technical subjects. The subject could be baseball, some office policy, who Elrond's parents were, whether Kepler formulated is laws of planetary motion after Newton (a claim my brother-in-law made that at the time I was pretty sure wasn't true but didn't bother to argue about), or whether Pocahontas (in the Disney film) sings the line "blue-corn moon" vs. "new born moon" (a bet I made with my older sister when we were young, and which I lost).