For 5,000 years, gold and silver have been the only assets that have not gone bankrupt.
Both gold and silver are assets that are completely private and are not part of the financial system.
Their value does not depend on the ability of a third party to honor its obligations. Shares, bonds, derivative contracts, even cash, depend on the creditworthiness of the issuer.
They can be 100% owned.
Their value increasing during the financial crisis, war, natural disasters, terrorist attacks. They are the safest asset!
They are dealing with both inflation and deflation.
They have a very high financial value per unit volume, which means that a very small amount of pure gold or silver has a significantly higher purchasing power than other commodities.
They are liquid.
Each unit of measurement has the same physical characteristics, and can be divided very easily without losing the properties of the whole.