From their "Grin for Bitcoiners" article [0]:

    There are 3 main properties of Grin transactions that make them private:

        - There are no addresses.
        - There are no amounts.
        - 2 transactions, one spending the other, can be merged in a block to form
          only one, removing all intermediary information.

    The 2 first properties mean that all transactions are indistinguishable from
    one another. Unless you directly participated in the transaction, all inputs
    and outputs look like random pieces of data (in lingo, they're all random
    curve points).

    Moreover, there are no more transactions in a block. A Grin block looks just
    like one giant transaction and all original association between inputs and
    outputs is lost.

So I think "No more amounts" is simply trying to say that the concept of a globally-accessible transaction on the blockchain with a verifiable transaction amount is now gone. Now it's just blocks, which can be many transactions coalesced together. From later on that page "It's as if when Alice gives money to Bob, and then Bob gives it all to Carol, Bob was never involved and his transaction is actually never even seen on the blockchain." It is not trying to say that this currency is not countable or something like that (how would that even work?)

[0] https://github.com/mimblewimble/grin/blob/master/doc/grin4bi...

>It is not trying to say that this currency is not countable or something like that (how would that even work?)

Yeah, that's what I thought at first, as well as some other people. I thought that maybe each person creates their own "currency" - maybe all the transactions are just sending files? The people trading determine the currency - a rare (e)book? Photographs?

I feel like it'd be very useful to make this clearer. "No amounts" is a very different statement than "no public amounts".

So s/There are no amounts/Transaction amounts aren't public

?

It does have amounts but the amounts aren't public. They are hidden behind a blinding factor using a technique called Confidential Transactions (CT) [0].

[0]: https://elementsproject.org/features/confidential-transactio...

It's going to be speculated on as soon as exchanges list it.

It is, until the speculators understand that this has been severely discouraged in the economic model, and then it will have a liquidity problem.

There is a cascading effect from modeling out speculation that they do acknowledge and don’t care about.

That is called vision.

And delusion.

But I said the same thing about bitcoin being stupid in 2009 here.

> severely discouraged in the economic model

Do you mean the fact that there's a fixed continuous rate of new coin production? Because as they point out in the Grin for Bitcoiners page that's still a continuously decreasing inflation rate (as a percentage of all coins).

Grin uses homomorphic cryptography and non-cooperative coinjoin giving it great privacy. The amounts are not public and look only like random 256bits to someone that does not have the private key.

How is speculation a be thing? Healthy dose of speculators is needed for healthy markets. Speculators create liquidity and help pricing things. Without speculators, in general, world would be a lot worse.