Secondly, in a catastrophic situation, where electrical power is halted or denied for an extended period of time, one who owns physical gold or other precious metals, still has those assets in their possession. At that point, physical gold might actually find usage in trade or exchange. In that situation, all cryptocurrencies would just be "gone" until the lights came back on and internet service had been restored.
Space Dust : gold can not be destroyed, fire may melt it, but it is still shiny and easy to recover. it has many industrial uses. Also medical uses exist for gold. along with things we may not know.
if you bury it, it can still be dug up. it's waterproof also.
other than all that, it's just like gold.