Oddbean new post about login | logout The term "Common Sense" seems to most often be used by people who don't want to explain their line of logic or that want to use it as their secondary point after a weak first point of explanation. This is just common sense.
Common sense, the least common of all the senses.
the difficulty with common sense is that it is utterly uncommon (I mean real common sense, like "I'm fat so I had better start exercising and check my food intake" or "I'm going to speed up crossing the street so the cars can get going." These things arise without having to think, which I suspect is why I is called common sense... but sadly it is rare.)