Your point only holds if Bitcoin's price growth doesn't outpace inflation, over the long term, correct?
Discussion
Btw if you believe Bitcoin is a good investment, better than say a savings account, then go ahead buy Bitcoin. Like buying shares, real estate etc. whatever. But what does that have to do with the credit card. When you invest you don't spend and if one day you need to spend you sell assets for fiat and then spend that. Important: You don't count on having fiat and how much until you actually sell. Your day-to-day expense budgeting involves just fiat you actually have.
Because you mentioned a credit card and everyday spending it seemed you were wanting to do your expense budgeting in Bitcoin and were hoping that prices in Bitcoin would go down thanks to just fiat inflation. But if the fiat price of Bitcoin rises just thanks to inflation then Bitcoin prices of goods and services will just remain stable. So no free lunch.
I thought it was clear that I think the price of Bitcoin will far outpace "just inflation". By an order of magnitude or more over a medium term timeframe.
Agreed, if I thought it was just going to TRACK inflation then I would just invest in a more stable asset that does that very boring thing.
I'm not "investing". Bitcoin isn't about _making_ money, for me - I believe Bitcoin will **be** the money. What I think I'm doing is acquiring the market good which will replace the current money, because it is clearly a better solution to the problem. And the best money always wins.