Gold is good to store value until you can create it. I guess that a good point to Bitcoin value
There's only a limited quantity of gold on earth so its value is more practical than any digital cryptocurrency as far as stability goes. Not that the current world economy cares a lot about stability though, as many economies use inflation compared to other currencies to maintain growth and take a certain spot in worldwide trade.
The platinum process seems interesting, any link/name about that?
"Gold can currently be manufactured in a nuclear reactor by the irradiation of either platinum or mercury"
Not much in the way of details, unfortunately. The sources might be a good place to look for more.