“Why do people feel pressure to have an answer for every question?” Even when they don’t know Jack, they make it up on the fly. Ten years ago our training courses included a short video clip of college students at some of the more prestigious universities speaking at length with great confidence about a subject which they obviously knew very little. One episode had students suggesting summer’s were warmer because the Earth had moved significantly closer to the Sun. This video claimed we have been programmed from a very early age to know the answer or make it up. Apparently, some people take to this training better than others. If you really want to know the cause, you’ll need to ask someone else, because I simply do not know.