It is somewhat amazing to me that there are people who much less concerned about their ability to recognize false reasoning than their ability to recognize counterfeit currency. It seems pathetically obvious to me that sloppiness in the former, meta level would tend to be expensive at the latter, object level - for example, you end up with people placing their trust in tools like iodine pens to detect counterfeit notes when almost no evidence exists that such a measure is effective.
Currency is binary, either genuine or counterfeit. Ideas are on a continuum, some less wrong than others. Generally, bad ideas are dangerous because there's some truth or utility to them; few people are seduced by palpable nonsense. Parsing mixed ideas is a big part of rationality, and it's harder than spotting fake money.
Here's the new thread for posting quotes, with the usual rules: