> cryptocurrency has a finite volume of transferrable currency
This is true of Bitcoin. Others, such as Ethereum, have a known inflation schedule, which would help alleviate the issue you mentioned as being a currency of the future. Furthermore, it is looking like the "currency of the future" may (at least in the short term), look more like a cryptocurrency that is worth $1 and is 1:1 backed by a dollar in a bank account. These are known as stablecoins and are an in-demand topic right now for central banks around the world.
Bitcoin has a property of having a known, fixed supply. This allows it to serve as a store of value. It can and is used for day-to-day transactions, but there may need to be more advancements to make these types of transactions viable long-term (such as the lightning network).
Ethereum doesn't have a known inflation schedule. It has an arbitrary inflation schedule that is decided by the Ethereum developers.
The idea of cryptocurrency is to replace fiat currencies, with an engineered system instead of a political system. There's no benefit in a cryptocurrency that's backed by a fiat currency. It's like building a stone house on a swamp.
Couldn’t a government just destroy a stable coin by seizing the currency backing it? Isn’t the point of a cryptocurrency supposed to be that it’s not controlled by any government?
I don’t know if a government today could just seize crypto, but the USA did so with gold in the past. Imagine owning a whole bunch of gold, and then waking up one morning & finding out it’d been replaced with US Dollars.
A stable coin doesn’t necessarily have to be backed by fiat, DAI is backed by crypto assets and those assets can fluctuate and sometimes need to be increased during volatility.
I think the point of fiat backed stable coins are more for getting around regulations (eg Tether) and a fiat on-ramp for getting into the ecosystem. Certainly if the government seized a large portion of Tethers assets then that could affect other assets, but this actually has already happened with (a small portion, not large) Tether and nothing catastrophic happened.
This is true of Bitcoin. Others, such as Ethereum, have a known inflation schedule, which would help alleviate the issue you mentioned as being a currency of the future. Furthermore, it is looking like the "currency of the future" may (at least in the short term), look more like a cryptocurrency that is worth $1 and is 1:1 backed by a dollar in a bank account. These are known as stablecoins and are an in-demand topic right now for central banks around the world.
Bitcoin has a property of having a known, fixed supply. This allows it to serve as a store of value. It can and is used for day-to-day transactions, but there may need to be more advancements to make these types of transactions viable long-term (such as the lightning network).