It is great that Ron Paul is willing to tell us the truth. None of the other candidates are willing to do that. Unfortunately, he does not have the solution. If we go to a gold standard, the supply of money will be fixed. If the supply of money is fixed, the economy cannot expand. If the economy cannot expand, the unemployment rate will go up.
On the other hand, the economy cannot expand exponentially forever anyway. At some point, we will run out of resources.