It doesn't need to be repaid. It creates relationships, in the form of ownership or shared risk. Its why inflation is key and having control over interest rates

It doesn't need to be repaid. It creates relationships, in the form of ownership or shared risk. Its why inflation is key and having control over interest rates and quantitate easing is such a powerful tool for managing all this. All this is not to say that it won't blow up in our face (in particular with perverse incentives where we continue to destroy on our environment).