Maybe you can grab a few ideas. A gold backed currency would make no difference. The driving force of capitalism is debt. Debt that needs to be served with more debt (there is no treasure box in the cellar of General Motors that they can use to build car manufacturing plants). To keep the system running you have to continuously create more debt. To be able to do this, you need to have a growing economy, for the economy to grow, you need more energy.
To make things worse, this grows exponentially. This is not bad in itself, it has enabled capitalism based economy a tremendous dynamic in the last 150 years.
The Problem: Nothing that growth exponentially can grow very long and nobody has ever been able to show how a system that does not grow anymore or does not create new (higher) debt anymore can work. ("There is no steady state economy").
