Experts isn't the best word. They are specialists for the most part because even the best and the brightest in their field know very little and often think they know more than they do. Driving across the country in the early stages of the uprising in Libya the “experts” were all saying that Khadafy would fall within a few weeks. Almost a year later he did. They were also saying that sanctions and an offer of exile would cause him to step down. I didn’t know anything about Libya, but I knew he’d never voluntarily leave. Then of course there are the global warming experts who aren't even specialists.