The anti-government, anti-bank ideology behind the creation of bitcoin and other crypto-currencies is indeed a bizarre political cult whose adherents are definitely lunatics. That doesn't mean everybody who owns bitcoin is necessarily a lunatic. What is true though is that, generally speaking, proponents of bitcoin don't seem to really grasp basic economic concepts. For example, what does it mean for a fiat currency to have "negative real interest" rate? Currencies don't "have" real interest rates. Real interest rates are not set by governments nor central banks, but by the market, and they are independent from currency (that's what "real", as opposed to nominal, means). At least Musk is decent enough to admit he doesn't know what he's talking about, which is good. Bitcoin is a non-income generating asset, which means the only way it can produce a positive return is if it increases in price, and it can only increase in price if the demand for it grows. Therefore I'd be a little sceptic about opinions put forth by people who are invested in bitcoin, as they have a strong financial interest in promoting bitcoin in order to make its price rise, as this is the only way they can safeguard their investment. If I were you, I'd look elsewhere for opinions on this matter.