Why do certain phrases, such a "Peak Oil", make so many people have such strong opinions based on so little information and expertise? It must simply be one of

Why do certain phrases, such a "Peak Oil", make so many people have such strong opinions based on so little information and expertise? It must simply be one of those ideas what captures the public imagination and makes everyone feel they must have an opinion no matter how little they know. I wish there was a better explanation. The human mind is a very strange and fascinating thing.