So you've gone and pointed out that the dollar is worth about 2% of what it used to be. Sure. A currency's real value is always moving relative to the underlyi

So you've gone and pointed out that the dollar is worth about 2% of what it used to be. Sure. A currency's real value is always moving relative to the underlying goods and services produced and exchanged in the economy - if it's not inflating, it's deflating, and it's never really standing still. The key is a low volatility in that interest rate itself. The dollar's historical average inflation rate, since such records were kept, has been 3.35%-ish, and that rate has gotten much less volatile over time (e.g. 1920 saw monthly rates as high as +23% and 1921 saw rates as low as -15.8%). But since about 1980, it's been pretty level all around. Bitcoin's value has experienced more volatility during the course of one day as the US dollar had in a whole year DURING THE GREAT CRASH OF 1929 AND LAUNCH OF THE GREAT DEPRESSION. Maybe some day Bitcoin will come to be the same bastion of stability that the US dollar has been and more. That day is not today. -- Postscript. If Bitcoin is a currency, its rise in value is deflationary. Deflation can be kind of bad sometimes. If you think back to your high school history courses when they were talking about the days that "bimetallism" was a thing during the Panic of 1893, it was because ordinary peoples' gold-backed-dollar-denominated debts and mortgages were becoming more expensive to pay off. "You shall not crucify mankind upon a cross of gold!" -- TLDR: Price stability or STFU