I think I understand the economics side a little better, though I admit I’m not an expert.
Possibly. I do have some familiarity, though it's more with "political economy" than economics proper. I don't usually have much patience for dry nonfiction books, though articles and long essays are fine. As a result, my knowledge here is less coherent and more shallow.
Why is Deflation Bad for Currency?
I broadly acknowledge your points here, and I don't have a full rebuttal, though I'm not yet prepared to change my mind on the issue. I'm just going to respond to the points where I have something to say.
‘Inflationary’ and ‘deflationary’
I do understand inflation and deflation, and it doesn't seem like there's been any misunderstanding thus far. There's supply inflation and price inflation. Central banks use supply inflation and deflation to influence the economy. Increase supply to encourage investment when the economy gets sluggish, decrease supply to rein in price inflation.
While inflation has an effect on real wages, raising the minimum wage and negotiating salary increases compensate for this effect.
Wages haven't actually kept up with productivity, though. Arguably it would be better to have real wages increase by default through deflation, and make employers deal with negotiating pay cuts. That way inaction favors the (hopefully unionized) workers and squeezes the employer, instead of the other way around. This may give worker co-ops a competitive advantage in retaining experienced workers, whereas employers may be inclined to fire workers when pay cut negotiations fail.
Your claim about the US having abandoned the gold standard around the great depression didn't sound quite right to me, as I remembered we were on the Bretton Woods system until 1971. It turns out there was indeed a gap in the 30s though.
In looking at the chart on the Bretton Woods article, I remembered that the decoupling of real wages from productivity (article) also started in the 70s. I wonder if there's any connection. I know that Reaganomics was a thing, but that would have started in the 80s. (I promise I'm not doing a conspiracy theorist "ah ha!" thing here, the correlation may be entirely coincidental, but may also be worth further investigation.)
Because banks and the wealthy are incentivized to hold on to money, less infrastructure is built, loans are harder to get, and the amount of jobs available and total economic activity decreases.
This is a result of the credit monopoly. If we can break that, then the supply of credit should expand as needed, and the effects of deflation of the unit of account should be limited.
As one way to help with that, I've got some ideas for a friend-to-friend credit network inspired by the Lightning Network and the original (pre-shitcoin) RipplePay. (No blockchains involved, it's not a cryptocurrency.) The core of it would be a simple app for tracking lending among friends (for example, Alice pays for lunch for her and Bob, and they note this in the app instead of exchanging cash). It would also allow routing in order to make "IOU" payments to friends-of-friends(-of-friends, etc) where no direct trust relationship exists. This could then be used as a sort of community currency. My ideas are still kind of half-formed, I need to look more into the details of how the Lightning Network works, as well as how the shitcoin version of Ripple works to see if they have any ideas worth stealing.
The one thing that does bother me that I can't answer in a satisfactory fashion is that compared to an inflationary currency, deflation imposes a hard floor on the effective interest rate of lending. If the currency deflates at a rate of 2%, and you get a zero-interest loan, the real value of your debt is still increasing by 2% per year. I assume there's some level of need for actual hard currency that's relatively stable in the long term, and that people can't just use credit exclusively. "My friends owe me money" is not a great way to store one's life savings, after all.
Quibble: Hyperinflation typically only happens due to government mismanagement of their currency, and not as a result of regular market forces.
The effect of this should be minimal once infrastructure around and knowledge of Bitcoin becomes more fully developed.
My point was that the current level of instability, with 2000% increases and 80% drops, is only a result of the low current level of adoption, combined with uncertainty over whether Bitcoin is going to be the global currency to replace all others, or a fad that is going to die out. Once the "final" level of adoption is reached, you wouldn't leave your money "sitting in the blockchain" in hopes of a big return. It'd be more like having your money in treasury bonds. Some return, sure, but fairly unexciting.
Annual population growth from 1950 to the present (the era for which we have good numbers, I assume?) topped out at 2.24% in 1964. We're currently at 0.88%, and projected to go negative in the 2080s. I assume it won't be negative forever, but figure maybe 1-2% annual price deflation over the long run?
What do?
Shifting gears a bit. Let's say for the sake of argument that the deflation thing is actually very bad. Maybe not catastrophically bad, but at least bad enough that we should prefer that Bitcoin does not succeed.
What alternative do we, as anarchists, offer to the world? Besides anarcho-communism, that is. I'm skeptical of it as a totalizing vision, and a lot of people just won't go for it.
I assume that in a post-state society:
Let's say that all of the other altcoins were obliterated, and that only Bitcoin and Dogecoin remain. Dogecoin would be the better option for society as a whole, due to the supply inflation. However, for individuals it's preferable to only accept Bitcoin and refuse to accept Dogecoin (Thiers' law). Dogecoin is unlikely to catch on because of this, even if we ignore Bitcoin's first-mover advantage.
What other good alternatives are there? I don't think "anarcho central banking" would be viable.