PersonDude wrote...
You find common ground with another person if you guys can share the knowledge or can converse over something both are familiar. Of course there is a probability some might become agitated hearing you drone on about something they don't understand as I've been in this situation. It really also depends on how the person present themselves; If they are to forward about their knowledge and there is cynicism present in their tone, you can't help but be annoyed. But more often then not, I've seen it have a positive effect in socialization.
Ah, what I meant is that people hate to be wrong, or when someone disagrees. Humans love agreement.
Person A has expertise (is knowledgeable) on subject X
Person B relies on crude, but popular layman's theories about X
Person B will react hostile to A's knowledge of X, simply because A disagrees, even if person A frames it non-confrontationally. The best A can do is feign ignorance (I always do! It works!), but that raises the question of whether A's knowledge really has any use in socializing.
Person A in turn will be put off by person B's perceived ignorance and hostility.
A would be better off not spending any time and brain capacity on subject X, where X is anything not immediately concerned with his or her trade, his or her survival, etc.
If neither person A nor B had any expertise in X, both would rely on superstition or popular layman's theories and find solace in perpetual agreement.
Society at large is hostile to expertise (QQ) that is of no immediate use to it (e.g. "how to repair a car" when a vehicle is broken), therefore it is most efficient not to have any superfluous knowledge.