As a practicing chemist, I can tell you that the article about catalysts was definitely not BS. It was a good explanation, in terms a caveman could understand, about the value catalysts have to modern industry. Plastics, gasoline, soaps and detergents, etc, etc, etc are all made with the help of catalysts. Most of the non-metallic components of your computer are made wth catalysts, and without them, you couldn't make your "BS" postings.