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Gold will always retain value.After >40 years, gold has only just gotten back to its 1980s inflation-adjusted price:
* https://www.macrotrends.net/1333/historical-gold-prices-100-...
Papers have been written on how it does not hedge inflation:
* https://www.nber.org/papers/w18706
* https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3667789
See also Roy Jastram's The Golden Constant: The English and American Experience 1560 to 1976:
> Andre Sharon, head of the international research department at Drexel Burnham, Inc., notes, “the value of gold essentially derives from its capacity to preserve real capital and purchasing power.”† I select this particular quotation because of the prestige of the organization and the position of the spokesman, but statements in this vein can be found in great numbers. They can be traced back for generations and in many countries. How can this proposition so contrary to statistical fact become so widely believed and quoted? Possibly because gold has preserved capital in cataclysmic cases it is easy to infer that it can be trusted to do the same in less severe circumstances. To extrapolate from gold’s protection in singular catastrophes to its use as a strategy against cyclical infation is an example of faulty inductive reasoning.
* http://csinvesting.org/wp-content/uploads/2016/02/RoyJastram...
So if the barbarians are (close to literally) coming across the fields, gold can be useful to hide or take with you as you head for the hills, but for most economic situations it is not useful.
> Stocks and crypto can fall to 0.
In which case, you better be a farmer with lots of ammo so you can feed yourself and protect what's yours. Of course the Mad Max chaos is a popular trope, but historical events show that people tend to be altruistic and pull together during disasters:
* https://en.wikipedia.org/wiki/A_Paradise_Built_in_Hell