Have you ever met someone who is not just convinced, but believes and embraces with every ounce of his being that he is smarter than you? This "belief" (for lack of a better word) becomes so deeply engrained that it moves from the conscious to the unconscious. As time passes, it morphs away from being a belief and morphs toward a "premise-for-everything". Essentially, it evolves. Once it becomes fully subconscious, this person's every interaction with you will be one premised upon him being smarter than you. It's not meant to offend. Hell, it isn't even intentional. It just ... is.
These people are not all that common, but common enough. I used to let interactions with these types of folks offend or even upset me. Now I just try to let it go. What I have observed is that along with this deeply-entrenched overconfidence comes an undeserved arrogance or superiority which usually lends itself to outward foolishness. Their own overestimation of themselves combined with their underestimation of you sets the stage perfectly for errors and failures. If, or when, those failures come they seem appalled that somehow The Universe subverted their perfection in a plot to harm them.
These people are not all that common, but common enough. I used to let interactions with these types of folks offend or even upset me. Now I just try to let it go. What I have observed is that along with this deeply-entrenched overconfidence comes an undeserved arrogance or superiority which usually lends itself to outward foolishness. Their own overestimation of themselves combined with their underestimation of you sets the stage perfectly for errors and failures. If, or when, those failures come they seem appalled that somehow The Universe subverted their perfection in a plot to harm them.