I used to have 1 argument against that lie, now I have 3, so let's see, shall we?
1. Forking: The possibility of forking (the ability to create an almost or nearly identical another crypto from the original) itself defeats the claim of scarcity. It is like having a 3D printer that can copy the original down to a T. Or like a reciprocating machine like in sci-fi. And it doesn't even cost anything. Nope, such a product not scarce.
2. Other cryptos: This is the most obvious counter example. As long as other cryptos can be freely created that can have completely identical features (or for God's sake, even better ones!) no crypto is scarce.
3. Infinite divisibility. This is a good one, but harder to understand. As long as a crypto is divisible and usable infinitely, it doesn't matter what the original maximum limit is on the issued coins. Bitcoin, Litecoin and Dogecoin have all the same amount of infinite little coin pieces, no matter that one has gazillion times bigger upper limit, than the others.
For the purpose of the system even 1 Bitcoin could work, they don't really need 21 million of them. Because of this fact it is highly irrelevant if this upper limit is 21 or 84 million or 2 billion. Not to mention for practical usage, they should have split Bitcoin 1 to 100, but "only 2.1 billion is ever going to be made" just doesn't sound as good.
Anyhow, now you know. Cryptos are not scarce.
1. Forking: The possibility of forking (the ability to create an almost or nearly identical another crypto from the original) itself defeats the claim of scarcity. It is like having a 3D printer that can copy the original down to a T. Or like a reciprocating machine like in sci-fi. And it doesn't even cost anything. Nope, such a product not scarce.
2. Other cryptos: This is the most obvious counter example. As long as other cryptos can be freely created that can have completely identical features (or for God's sake, even better ones!) no crypto is scarce.
3. Infinite divisibility. This is a good one, but harder to understand. As long as a crypto is divisible and usable infinitely, it doesn't matter what the original maximum limit is on the issued coins. Bitcoin, Litecoin and Dogecoin have all the same amount of infinite little coin pieces, no matter that one has gazillion times bigger upper limit, than the others.
For the purpose of the system even 1 Bitcoin could work, they don't really need 21 million of them. Because of this fact it is highly irrelevant if this upper limit is 21 or 84 million or 2 billion. Not to mention for practical usage, they should have split Bitcoin 1 to 100, but "only 2.1 billion is ever going to be made" just doesn't sound as good.
Anyhow, now you know. Cryptos are not scarce.