We believe this to be a breakthrough and in our recent paper have shown that Blockchain systems (and potentially Bitcoin) could be implemented to make external calls to web services themselves (without requiring oracle inputs or external systems).
I don't understand how this could have any real use case for Bitcoin blockchain so maybe you can elaborate more on this and give me some examples, but it can certainly destroy some centralized altcoin projects.
Maybe some scripts could be used for this but I think that fees would be very high and you would still need to trust some trusted third party, and who says that someone is really trusted?