Lesson 9: The herd is right most of the time. The herd is also catastrophically wrong about 20% of the time, at exactly the worst moments.Everyone agrees: sell now. Is that a reason to?The news, your feed and your brother-in-law all say sell.ANoIt's often the worst time to sell.BYesThat many voices can't all be wrong.CYesAt least you won't be wrong alone.