ideas-ripple

an idea for ripple:

if a friend or acquaintence suddenly printed lots of money for themselves, you'd want to lower your exchange rate with them. But you don't want to have to be on Ripple every day like a currency trader. So, either allow people to specify their exchange rates as proportional to outstanding bills of the counterparty, or only allow money printing at certain times, like once a month, and exchange rates expire every month.