By Mary Anne and Pamela Aden and the Dow Theory Team
I know from my own experience how difficult it is to move, to make fundamental changes where investing is concerned.
When people spend most of their lives believing one thing, it's seemingly impossible to get them to see change, to see the other side of the coin.
For instance, we have the folk lore about, "America, the invincible, America, number one forever." Well, nothing's forever, and we might as well face it.