Plus some of these authorities, while well versed in some topics, are not reliable in others. For example, Uncle Bob is a minefield -- knowledgeable in some top

Plus some of these authorities, while well versed in some topics, are not reliable in others. For example, Uncle Bob is a minefield -- knowledgeable in some topics, but also very stubborn and tends to preach about topics he knows little about, like functional programming (preach against in this particular case, with a heavy dose of strawmanning).