The article discusses the difficulty of buying products and services that work well, citing examples of inefficiencies in various markets, including tech and consumer goods. It argues that the efficient markets hypothesis does not always hold, and that companies and consumers often struggle to find high-quality products and services. The article also notes that even experts and credentialed individuals can provide poor advice, and that the problem persists at both personal and firm levels. This leads to a situation where it is hard to determine which products are good and which are not, making informed purchasing decisions challenging.