Its really funny to me that you guys seem to be so conversant with the Austrian/bitcoin philosophy that you can no longer conceive of the other perspective.
A hyper-deflationary event can actually be just a bad as a hyper-inflationary event. They both massively interfere with long term financial planning which results in economic stress and puts people into poverty. In the hyper-inflationary event everyone holding currency gets screwed. In the hyper-deflationary event people with loans are screwed (because everything else, like your salary, is adjusted to reflect the increased worth of the currency) and rich people start saving instead of investment resulting in stagnant growth.
Joe and Jane sixpack don't care that they can buy 1/XXXX of everything. They want 1 coin to buy 1 gallon of milk today, tomorrow, next year and 100 years from now. To them that is a consistent measurement.
I'm skeptical that the apocryphal people in your example would prefer the coin which buys one gallon of milk today to only buy one gallon of milk in the future instead of more than one gallon.
I think what they actually care about is not losing purchasing power, not consistent measurements.
Consistent measurements imply that purchasing power is not lost...
Financial planning is difficult if you consider that 1/XXXX of nothing is nothing. But easy if you can rely in the future on 1 BTC to buy 1 meal. Of course, that's the lie -- the current system has inflated away most of the value of the currency. So you simply CAN'T rely on this and need to take that into account when planning.
Your disk analogy is flawed. A more accurate example would be if a back in the days of 360KB floppies, someone coined one DU (disk unit) to be 1/360th of a disk. So with today's 1TB hard drives, the minimum addressable size (1 DU) is 2.7GB.
I think the disk analogy is perfect.
1 kilobyte is still 1 kilobyte today just the same as it was 20 years ago. We just refer to storage mediums in terms of gigabytes or terabytes now, because file sizes are so large as to make kilobytes mostly irrelevant in day-to-day file management. 1 Bitcoin today will still be 1 Bitcoin 20 years from now. We'll just refer to them in terms of milliBitcoins or microBitcoins 20 years from now, because they'll be worth so much as to make 1 Bitcoin mostly irrelevant in day-to-day transactions.
Now, granted, 1 BTC could be worth a lot more in the future, thus the purchasing power of 1 BTC would have increased. But the corollary still exists to an extent: 1 kilobyte could have stored more 20 years ago than it does today (in terms of documents and images), largely because of the additional metadata in document files and additional quality in imagery present today.
A very nice correlation in logic IMO, even if not perfect. I think I'll use that when speaking with others about the 21 million coin limit.
1 kilobyte has "marginal utility"; it stores 1024 characters. So it really does measure something. But a Bitcoin has no fundamental measurement. Its value is set by the market and since there are only 21 million, its value (how many it takes to get what you want) rises and falls over time as the relationship between the scarcity of the currency and the scarcity of the good.
Please don't use this analogy; everyone who hears it will drill it full of holes... its better to use the balloon analogy. In bitcoin's case the balloon is the market, so the value of a bitcoin finds its optimal worth. In fiat currency the balloon is the central bank and they can blow it up until it pops!
BTW, Your quote works exactly the same with the dollar: "1 dollar today will still be 1 dollar 20 years from now..."
That's preaching to the choir
Others will argue that you are changing your yardstick. Bitcoin is like a measuring stick drawn around a balloon as the balloon is inflated (or deflated) the size of a bitcoin increases/decreases.
Joe and Jane sixpack don't care that they can buy 1/XXXX of everything. They want 1 coin to buy 1 gallon of milk today, tomorrow, next year and 100 years from now. To them that is a consistent measurement
...
However, people STILL want a currency with a reasonably steady cost-for-a-representative-basket-of-goods.
People should not want that. Prices are supposed to vary according to economical reality, not according to our assumption or desire of stability.
Otherwise, I have a great idea to solve global warming issues. Since we would like the global temperature to stay more or less stable, let's change the definition of the temperature to cancel out the effect of greenhouse gazes.
Also, I would be very surprised if Jane or Joe was unhappy about a decreasing price of a sixpack.Sure, but what people *should* want and what they *do* want are very different things.
Its all about wild swings, living in a world where the currency varies by 25% (say) monthly is like gambling with one quarter of your life savings every month. Not fun for most people...
Coming into the creation of the Fed, there was a lot of currency uncertainty in the US... but some revisionists actually believe that this may have in fact been due to poorly conceived prior regulation not despite it.