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Zopa should not come to Russian-speaking countries with such a name :) Won't make profits.

Well, Salman, banks have to maintain XRP nostroes (a kind of) as well. And those XRP's come from exchanging fiat into XRP. So I think it does not make a big difference what kind of nostro to hold. Ripple should have elaborated more on what those savings actually are.

I think the 40-70% savings are mainly comprised of transfer fees savings, because XRP/fiat rates are very close to fiat/fiat rates.

IT's very handy to own your cryptomoney. You may invest it anywhere as much you'd like and look like a high street investor :)

Blockchain-ed identity management seems to be so ineffective with doubtful outcomes. In case of Facebook you just give them you personal data and risk they might be misused (like just what happened recently). Now imagine there is a decentralized database that stores your data. Facebook requests some of your data, you grant the access to read from that database. What can stop Facebook from saving and keeping this data?

A digital currency does not necessarily have to be decentralized like the bitcoin. Any central bank can start issuing and controlling the issue of its own digital currency, which may act as a 1-to-1 equivalent of the fiat money. Eventually the central bank may kill the circulation and production of hard/paper notes and switch to purely digital settlements. But again, the digital currency value definiton, issuance and circulation will obey the same economical rules and procedures that traditional currencies do. So hard times for central banks and governments can be in persuading public to discard hard cash and creation of the necessary country-wide digital infrastructure.

I honestly don't see any relation to the now-gone smartphone OS's. Symbian and afterwards Meego were killed purposefully by Elop who bet on Windows Phone according to his Microsoft masters' will (and eventually bankrupted Nokia).

Bada has transformed into Tizen, which is used on Samsungs smartwatches.

Blackberry lost traction due to their management mistakes and stagnated to death.

Open banking API is a completely different thing. All that banks have to do is to agree on unified methods, data objects and formats. They might set up a consortium which would centrally standardize, develop and distribute the actual API's, just like what SWIFT does.

As long as CBDC's are backed with traditional currency they are free of any hidden risks. Look at Kazakhstan which introduced its electronic tenge (EKZT) long before the crypto-hysteria. EKZT is backed with KZT 1-to-1 and is also the legal tender.

Unless the BIS is wary about the likes of bitcoin issued by central banks not backed with tangible assets, and thus volatile.

I'd love to read their white paper. So many questions to them.

To me Nostro Reconciliation in connection with DLT is just meaningless. What is the purpose of NR? To make sure that a bank's internal ledger is balanced with the mirrored external statement. The non-real-time and non-transparent nature of bank transfers required this, right until the DLT-powered RTGS is presented. If you have a DLT system, that means that your ledger is fully synchronized with you counterpart's ledger at any given time. Of course there must system checks ensuring the integrity and raising flags in case of discrepancies. But the NR in it's traditional meaning and form becomes obsolete, if of course SWIFT augments its 'gpi' product with DLT properly.