I think there are a few very different concerns here that must be separated:
1) Falling prices of goods/services
2) Price instability
3) Shortage of currency
For shortage of currency, this is not even remotely a concern with Bitcoin. Physical currencies, even digital currencies tied to them, cannot be divided beyond a couple of decimal points. Bitcoins can be divided to 8 decimal points, and more if necessary. There will never be a shortage. The value will merely rise to compensate. Now, does that mean that Bitcoin is immune to any ill effects of rising price? No. And it is in early adopters' best interests to spend some Bitcoins in order to spur adoption and to grow the real Bitcoin economy. But that process is a function of the market, and will be regulated as such. Which leads to...
Falling prices of goods and services -- this will not hurt Bitcoin adopters in the long term at the very low deflation rates expected. In the short/medium term, once again the proper rate of spending and consumption is a function of the market. It is difficult for individuals to determine this rate alone. But with the help of market functions like futures and options and the incentive for traders to stabilize the price, both buyers and sellers can insulate themselves against rapid price swings, and ultimately the natural technological innovation and advancement inherent in any economy will be harnessed to generate wealth in abundance rather than forced consumerism and waste, and everyone will benefit from falling prices.
Now, the big one is price instability. This really is the worst problem with any unstable currency, both inflationary and deflationary. Any currency that is a moving target will introduce fluctuations in value that ripple through the economy and amplify, distorting prices and disrupting the price discovery mechanism. This will be an especially bad problem with Bitcoin, at least while it is growing. On top of the many regulatory hurdles to adoption, and the anonymous nature of Bitcoin which attracts extra scrutiny, there are entrenched forces which will absolutely not want to see Bitcoin succeed. In fact, one of them sponsored the study you cite. Large banks and central banks, payment processors and even governments all have billions of dollars at their disposal which can be used to disrupt the Bitcoin economy. As long as the Bitcoin economy is small, this will remain a huge threat. The good news is that, in the long term this will only make Bitcoin stronger. The bad news is that, in the short term it will make Bitcoin a very poor medium of exchange similar to precious metals which have been manipulated for decades. So, actually, one of the best defenses against the most harmful effect of deflation, price instability, is self-interested hoarding.
1. I believe you are right. If we don't spur economic activity with bitcoin, it's going to be long painful crawl to then endgame (whatever that is). I think bitcoiners have a duty to request merchants (especially online shops) take bitcoin. If enough people do, maybe they will at least investigate it and become bitcoiners themselves, if not accept bitcoin.
2. I've been reading about the futures/options aspect and while I understand how it stabilizes prices, I don't understand how to 'bet' on future prices on places like ICBIT. If you have a good resource on how to understand this, (with pictures, like i'm 5) I'd be much appreciate. This is the kind of activity I would like to do with bitcoin after I understand it more.
3. I had no idea the 'hoarding' article was funded by one of these forces. Do you know which one? I am very interested in the interplay of these forces. I feel the more they fight it, the stronger it will become. Where does one keep track of this? Is there a possiblity for a bitcoinwatch site that keeps tabs on these different forces?
Thanks for you detailed response!