I am always a little skeptical about calls for a return to a gold standard. Regardless of any benefits of doing so, I think most governments and central banks want to maintain the ability to create fiat currency at will and in whatever amounts they chooose. It's hard for me to believe they will ever tie it to anything that only exists in finite amounts. I think they are too addicted to being able to create it out of thin air as the Fed is doing now.