Sure except as we covered last time we tried that we had the great depression (and quite a bit of instability before hand).
Economic theory knew the instability would happen and new fiat would solve it. We moved to fiat and the theory turned out to be true, things have been **significantly** more stable ever since.
When the science and data very clearly shows economic theory is right and that backing money with gold leads to poverty and instability why would you or anyone argue to go back to that? Its already been demonstrated to be a bad idea and the solution has consistently demonstrated to be better.