We do not live in a prefect world.  Mistakes will be made and there will be costs associated with any choices we make.  My late father used to reminisce fondly about farming with horses.  Take it from someone who has been in a corn field where a class 9 combine was running next to a man shucking corn into a horse drawn wagon, no matter what may have been lost in the progression we are never going back to that time and way of doing things.  And we are never going back to 100% reserve requirements, gold currency, or letting the economic chips fall where they may.