What is money? It is a store of value.
Think of your retirement portfolio as a the value of your entire life's work.
Why would you risk it by not ensuring the 'store of value' you are using is going to actually maintain its value?
Cash and fixed income assets can be highly vulnerable to a 'loss of value' when faced with interest rate increases and hyperinflation.
The United States no longer has the will, nor the ability, to repay its debt.
The markets know this.
Therefore, it is only a matter of time before the system corrects and the house of cards falls.
Makes sure your retirement nest egg is protected with precious metals, a reliable store of value for the last 5,000 years.