Wow that was a good interview. I wish that I cold have been around for it.
On the subject of bit-coin and it's contemporaries I have my own vision (being a long time silver bug) of how this problem with gold, silver and cyrtocurrency should work it way out. Because it seem that the narrative these days is the world has to go 100% gold and silver or 100% bit coin.
That's a lot like the crap sandwich that James was talking about. Well I agree, it's not for me! My vision works like this, a co-operation between gold and bit coin dealers or maybe even a gold dealer with a block-chain. These bit coin would only be good for transaction in order to remove the incentive to speculate off the value the currency. 1 oz of gold or silver is equal to 1 unit of currency be it the gold currency or the silver version of the same currency. Because the currency in question will only be good for real time transaction we will not have the problem of hypothecation.
At this time what we have is one currency that acts like many, and if the power that be have their way there could be only one. This way the number of currency is limited only by the number of trusted block-chains. If you get some time I would like to hear what you think of the idea. If you like it I hope you spread it to the bit coin community. Also Please check my story on this subject here https://steemit.com/bit/@geneticmemory/bit-coin-a-conversation this conversation/post is where the idea come from.

http://Geneticmemory.org