from Real Clear Science:
By nature, human beings are illogical and irrational. For most of our existence, survival meant thinking quickly, not methodically. Making a life-saving decision was more important than making a 100% accuarate one, so the human brain developed an array of mental shortcuts.
Though not as necessary as they once were, these shortcuts -- called cognitive biases or heuristics -- are numerous and innate. Pervasive, they affect almost everything we do, from the choice of what to wear, to judgments of moral character, to how we vote in presidential elections. We can never totally escape them, but we can be more aware of them, and, just maybe, take efforts to minimize their influence.
Read on to learn about ten widespread faults with human thought.