Nice article. I hope you do know that you can trade bitgold in bts exchange. Every bitgold currently into existence is backed by 220% - 890% collateral in bts value and bitgold is worth at least 1oz of gold . bitgold in bts exchange is a decentralized asset on the bitshares blockchain, an IOU from the blockchain if you want and not an IOU from a centralized company. NO ONE can ever take that bitgold from you or make you give it away (unless you get hacked of course).

https://bitshares.openledger.info/#/market/GOLD_BTS

http://cryptofresh.com/a/GOLD