Thanks for your thoughtful comparison between fiat money, physical gold and bitcoin. History has shown fiat money is a failure as a store of value. Physical gold worked well for 300 years, but today it is deemed inconvenient to most people (and uncontrolable by gov). Bitcoin, which offers both scarcity and a store of value, fails as a fungible currency based on lacking a unit of account. Bitcoin is more of a speculative bet on blockchain’s future than legitimate money due to its extreme price volatility. Likely the next generation of cryptos will link blockchain with gold, such as GCoin.com claims it soon will do.