I will have to side with realRoach on this one.   There is no doubt alot of gold waiting in the ground, since we only mine the earths crust and there is giant amount of gold deeper.  However the point of that relationship would be that gold extraction generally goes in line with technological advancement, its not excessively inflationary as we recognise most FIAT currency has become.   That standard is corrupted by politics and is not a benefit, service or parallel of human economic advancement, the world will be improved when we do not hold one countrys paper as a world reserve asset.

Blockchains are a positive technology but its probably also a false dynamic to say they are more limited then precious metals or in some way more unique.    To be useful the protocol is going to have to be developed further, its not static.   Quite likely BTC will not be the only 'ticker' symbol traded, they'll be many with each their own properties.

I have read recently IOTA exceeds BTC in transaction volume, I believe its much unfinished though

https://en.wikipedia.org/wiki/Parable_of_the_broken_window