Overcomingbias and Lesswrong have seen considerable discussion of several specific topics. These discussions are interesting in two lights. First, they are interesting as data about important aspects of how our world works -- analysis you might want to know if your goal is, say, to
Robin Hanson has argued strongly that it does not, and that a vast chunk of America's national economy is doing nobody any good. Many commenters have disagreed, agreed, or cited research in support of more nuanced positions. You can read the details in Robin Hanson's posts, and the ensuing comments threads:
What impacts
Are we living in a simulation, or are we otherwise basically confused about what the world is?