The XRP Ledger can handle 1,500 transactions per second, costs $0.0002 per transaction on average, and uses consensus mechanisms instead of proof of work so there’s little energy use. Banks are already starting to test and onboard it as a bridge currency.
So the statement “sovereign banking systems will eventually replace their existing check clearing and electronic transfer process with blockchain technology” is factually correct.
And the XRP platform is already being implemented by financial institutions. Sssshh. Don’t tell anyone.