Scientists are humans, too. And, just like other humans you know, some of them aren’t very good at their jobs. There are three main ways in which scientists can mess up.
First, some scientists feel as if they have something valuable to say on any topic under the sun. (Far too often, it’s politics.) Like those suffering from the dreaded Nobel Disease, they act as if their true expertise in one subject gives them wide latitude to speak boldly on every subject. They are wrong.