Before talking about currencies, we must have a quick look at some important dates :
-1850, replacement of provincial currencies by the Swiss Franc (https://en.wikipedia.org/wiki/Swiss_franc)
-1907, Creation of the Swiss National Bank (SNB).
-1926, End of the latine monetary union. Only CHF has an legal price in Switzerland (https://en.wikipedia.org/wiki/Latin_Monetary_Union)
-1931, Bimetallism is abandoned, and the Swiss Franc is only defined using the gold price (https://en.wikipedia.org/wiki/Bimetallism)
-1936, 30% Swiss Franc devaluation compared to gold (https://snb.ch/en/mmr/reference/festschrift_summ/source/festschrift_summ.en.pdf)
-1971, end of convertibility of USD in gold
-1973, end of fixed currencies exchange rate system
On the following graph, we can notice that the purchasing power of currencies faced a huge decrease over time.
However Swiss Franc was (is) worldwide considered as a very strong currency !
It is easy to imagine how much purchasing power the other currencies have lost in the mean time (my old articles : 200 years of Sterling Pound VS French Franc et 200 years of French Franc vs Swiss Franc )
And the evolution of the USD against CHF on a 200 years period and the gold price in CHF on the same long time frame
After reading this article, only a Central Banker can tell you that paper money is what you must hold.
I am hearing about purchasing power for ages (especially on French TV) !
Happy paper investing
PS: here are all my english articles https://www.crottaz-finance.ch/blog/category/english/
PS 2: Thanks to the my friend who contributed to help me in writing this article