[raesene9]

It'll be interesting to see how they use BTC specifically for this use case. Looking at https://ycharts.com/indicators/bitcoin_average_transaction_f... the transaction fee for directly using BTC is $4.6 at the moment. That's obviously not workable for small transactions, so some kind of overlay where the transactions are batched before commit, would be needed.

Also the volatility piece will be hard to manage in anything other than instant transactions. If it's legal currency will people have to denominate larger assets (e.g. cars, houses) in BTC and commit to a price where there could be considerable shift before settlement? I know they mention that stability fund in the article but I could see this getting more complex than that.

What the policy will be where BTC appreciates before settlement will be interesting too, so in a bull run will a buyer have to hand over the number of coins they committed to, and will the gov. get the excess, or the merchant?

[vincnetas]

This batching is called Lightning network.

https://en.wikipedia.org/wiki/Lightning_Network

[raesene9]

Sure I'd guess there are multiple options for this, my point was that one (or more) would be needed for this to be practicable for small transactions.