That's not the argument. The idea is that if a given amount of bitcoins is set to increase in value as time passes (as is supposed to happen if the currency is successful) you don't have a lot of incentive to invest or spend your money.
If you have $100 on your bank account today then you've got incentives to spend or invest it soon because it's slowly losing value because of inflation, your $100 will probably buy you fewer goods and services in the future that it does now.
Now if you have BTC100 on your wallet and you believe that Bitcoin will succeed as a currency then you know for a fact that these bitcoins will be more valuable in the future than they are now (because the demand will grow but the supply is capped). Ergo you have strong incentives to hoard your bitcoins and not spend or invest them. Your savings gain value without actually being invested in anything. They don't contribute to the economy, they don't fund anything.
I don't understand why most cryptocurrency enthusiasts don't see a huge problem in this. How will you get a loan to start your company in the bitcoin world? Who would want to take such a risk when they'll keep getting richer by not doing anything at all? You'd have to promise them ridiculously high returns (higher than bitcoin's deflation at least). The rich gets richer by virtue of being rich, the poor needs to buy food and basic utilities so they can't save their coins to become rich. Basically what we have today, only worse.
I am a big supporter of crypto currencies, and I do see a problem in that. However, the current volatility will level off significantly once there is wider adoption. That will help reduce incentive to hold. I would never recommend somebody give/accept loans in crypto currencies right now. The time will come though (unless governments squash crypto through regulation or outright banning).
That said, there's no guarantee that BTC or any crypto will appreciate indefinitely; in fact quite the opposite. It can (and does) lose value.
This also overlooks the benefits of a non-fiat currency, such as protection against things like hyper-inflation (most of us don't think about this right now, but if you have any friends in Venezuela ask them how important this protection is).
I'd imagine very useful - just sell it for a few thousand and then "Including Venezuela's equivalent of food stamps, the total pay package now rises to 250,531 bolivars, or $32.19 a month" so it should cover that for a while. Or a flight out.
Except that Bitcoin was mostly minted by a small group of users who simply horde it, hoping to sell it to other users who due to the software will not be able to generate it for as low cost as the early users.
It's zero sum (minus the cost wasted in maintaining the network), and the game theory Satoshi designed will inevitably disincentive new users from adopting it as the barrier to entry increases and alternative options will likely obsolete BTC.
Bitcoin is still deflationary, which makes it unusable as money. Inflationary currencies like USD incentivize people to spend and invest. Deflationary currencies incentivize people to hoard.
Bitcoin is inflationary until the mining period ends, which it hasn’t. You could then still increase the virtual money supply through fractional reserve banking; also “investing” is a lot more like hoarding than it is spending…
So far I don't really know if you can call it inflationary or deflationary because while it's true that the supply keeps increasing the main source of variation for the currency's value is speculation. BTC barely qualifies as a currency today so I don't think we can think in these terms, it's more about what it could end up being if it manages to turn into a proper currency.
>You could then still increase the virtual money supply through fractional reserve banking
You can't do fractional reserve banking on-chain as far as I know so that would mean having your money managed by 3rd party banks who would take ownership of your coins, pool them with other people's coins and manage them for you. So... Back to the start?
Furthermore I don't think it solves the problem of deflation, even with a fractional reserve the bank has no incentive to invest the money if the expected return are less than what it would end up with by not doing anything at all (and therefore not taking any risks either). If you have inflation of, say, 2% then any investment expected to create value or even lose less than 2% is a good one. If you have deflation of 2% then an investment that managed to generate 1% of additional value over your investment actually made you lose money because you'd have been better off not doing anything.
Therefore deflation will make it a lot harder to loan money, fractional reserve or not. Interest rates will be a lot higher to make up for it. The poor will pay the price for being poor, the rich will reap the reward for being rich.
>“investing” is a lot more like hoarding than it is spending…
Depends what you invest into I suppose, if you "invest" in gold bullions then you're right, if you're investing in a startup or loaning money to people buying houses then you're powering the economy.
Except that Bitcoin is (with consensual upgrade) infinitely divisible. (E.g. the network can [vote to] move to 16 decimal places, and so on).