5.0

Our #1 flaw as humans is that we think we're rational creatures, and I'm not immune to this flaw either. This is why I regularly have a book in my rotation that reminds me of all of my "brain bugs". The author wrote a great book that gives a wide range of brain bugs we all have, and it doesn't get too sciency, so I think most people would enjoy it if you're interested in the subject. Some of the topics he covers include how our memory fails us, why we hold supernatural beliefs, why we suck at reasoning, and the book ends with some useful suggestions and tools for "debugging".