Give people something today that will be more valuable tomorrow and they'll hoard it.
Give people something today that will be less valuable tomorrow and they'll trade it.
Good summary. It's why an ideal currency is one which suffers from neither inflation or deflation.
Modern governments seem to want us all running around trying to avoid inflationary losses though. No wonder we often feel like we're on a treadmill.
BTW, I think the OT fails to recognise that the size of the Bitcoin economy will grow many fold in the future. I am concerned that this will cause monetary deflation, when judged per capita. If you don't believe me, consider how hyperinflation works:
1. Too much currency is printed.
2. Some people grow suspicious and decide not to hold the currency, but use something else more stable instead.
3. The same amount of currency is then spread between a dwindling number of people.
4. As there is more currency per head, this will result in further monetary inflation to those using the currency.
5. If there are still people holding the currency, go back to 2, with more people growing suspicious. Else currency has collapsed and is now worthless.
The number of people using the currency is just as key as the quantity of currency. It's not just the total amount of currency that is the issue, but also the user base (the size of the economy using the currency), which panic can swiftly erode. This is why hyperinflation can happen so suddenly and quickly.
Hyperinflation is triggered by a loss in confidence in a currency: fewer people using it, which then compounds the problem. The total amount printed may cause high inflation, but it goes hyper when people abandon the currency (so the economy using the currency shrinks).
With this in mind, consider the reverse: a growing number of people using a currency, without any additional currency being created; it logically amounts to monetary deflation, per capita. With a denationalised currency, with an economy varying in size (likely growing), this should be considered at length... I'm afraid I do worry.
EDIT: P.S. It's interesting to consider why we are here. I assume some are losing confidence in their national currencies and are looking for something better. With gold/silver at high prices and tech like the Bitcoins appearing, are the fiat life boats already being filled?