A century ago, money was a pretty easy-to-define product. Many countries chose to back their money with hard-currency (gold bullion), giving money a relatively stable value. In an effort to bring more liquidity (and government control), money is now controlled somewhat arbitrarily by interest rates and direction injection by the Fed. The value of money is primarily determined by the money already out there, and then by those two factors.
Now, with paper bills representing only a fraction of the market, I ask:
What is money to you?
Is it even essential?
Who should control the money supply(should it be backed or not)?
I tried to make this as concise as possible, because the reality is that money... is quite a complex subject.
I think when a currency is just being created, some sort of backup is essential to prevent early onset inflation, which happens in oh so many cultures. But when you're at the point where everyone accepts the bills to have value, you have a stable currency. You can still have inflation, though, at this point, like the US. When there's a standard, it's much more difficult for inflation to happen.

