Digicash is mentioned. He also mentions bitcoin, "a fiat currency". https://youtu.be/P49CuntfNGk 9 minutes If that delivery is too flat for you, try  https://youtu.be/0xZ4dHffdqw When To Kill Your Rulers. This is the short form synopsis version. Four minutes. There's a thirty minute version available that goes into excruciatingly torturous detail about the topic too.  Rr