Humans are extremely bad at learning from the past, yet at the same time they cling onto concepts which are long out-of-date. This is caused by the way we learn. For evolutionary reasons humans had to learn a lot of things very quickly and our brains are hardwired to accept the first idea we are told from a "perceived authority" without question. This is logical as we do not want to distrust everything and most things we will need to understand the first time. Besides much of what we learn will not be used again for some time. When a solution turns out to be wrong it takes effort to remove it. This why we often continue to believe things which are