Common Sense
From Matthew Yglesias and the problem with common sense:
It’s common sense that heavy objects fall faster than light ones, and there’s absolutely nothing commonsensical about the correct answer to the Monty Hall Problem. It’s common sense that something called a “strong” dollar must be good, but in fact whether or not it’s good depends on the situation. It’s common sense that when families across the nation tighten their belts, the government should too, but it’s wrong. In fact, the reverse is true and the government ought to get more parsimonious when the private sector is flush, and vice versa. It’s common sense that if you can’t smell or taste or see atmospheric carbon dioxide it must not be a big problem, but it is!
