Yolan wrote:For example, I would say that steel coins are worth a -lot-. Why? Because they have utility. That is, they can be melted down and turned into a bar of steel, which can then be used to make sweet ass swords with. Here is the genius of it. You might not actually want to melt down the coins you trade for, but you know that there will always be somebody who does. It is their potential utility as a mineral, unlike with modern day currency, which grantees their worth.
I applaud you on your beautiful insight into the utter uselessness of the good-for-nothing paper "money" that your government is forcing on you IRL. Modern day currencies are shams ever since the abandonment of Breton Woods and the gold standard. Without a metal standard, the government can basically tax you, without having to go through even the normal courtesies of at least informing you about it, by simply printing and selling more of their so called money. Hello inflation, hello malinvestment, hello "financial crisis". *mumble-mumble-rant-bark-rave*
Metal standards are guarantors of value, and thus of liberty, and thus of human dignity. See also Gold and Economic Freedom -- Greenspan, Alan, 1966.
... sorry. Couldn't keep myself.

Player run banking system anybody?
Will happen. Probably without us even having to do much to implement it. Wax seals will happen, and after that you can basically set up shop and hand out wax sealed parchments as banknotes.
