I have actually covered the issue of 'blue blood' in the past - that is, the misinformed idea people have that human blood is sometimes blue. Blood is never blue. But a Pearson textbook perpetuates this falsehood. The problem here isn't that Pearson is wrong - goodness, I've been wrong many times in my own life, and being wrong can afflict people and corproations alike. No, as described in this article, the problem is that there's no way to correct Pearson when it's wrong. And that strikes me as the wrong way to manage learning and knowledge.
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