One of the greatest examples of conceit we know of comes from anyone who claims to know what grain and soy market prices will do in the next three, six or nine months. Yet, such claims are rather common coming from a wide variety of traders and market analysts. (Full disclosure: We have been guilty of making similar claims ourselves earlier in our career.) However, the experience of being wrong often enough has discouraged us from making such claims as we have grown older. Supposedly, with age comes wisdom, although we view this as mere rationalization for growing older, as if there were a choice.Obviously, anyone trading in grain and soy markets has an opinion about price movements in the near term and frequently the long term. Opinions...