Digital currency can only be the #1 use case if we find a generic, uniform way to pull in real-time real-world data of which we can verify its confidentiality, integrity and availability.

There are several known solutions which attempt to solve this problem; oraclize, bluzelle, chainlink, ...

How do you see this? Do you think the #1 use case can be achieved without having a secure, high available oracle?

Another topic I find interesting is the recent discussion on XRP: "Banks won't want to shift around hundreds of millions of dollars on a public available ledger."

How do you see this? Do you think fintech/banks can work use public ledgers?

Kind regards,