.Bonds are supposed to be the "plain vanilla", easy to understand, rock solid part of a person’s portfolio. As a person enters retirement, bonds have tended to play a bigger role.John Bogle, founder of Vanguard, always gave the advice to put “your age in bonds.” If you're 60, sixty percent in bonds, forty percent in stocks.
What Mr. Bogle had in mind was a solid, high quality collection of bonds, and bonds only.