> Inflation is a tax on idle money. Inflation is generally around 3%, so it costs 3% of your money for it to be "liquid" (idle).
I hear this all the time. Inflation measured by CPI is not a tax on the cash held by the rich. The basket measured by CPI is a rounding error to that level of wealth. If you held even $1 million in cash, you need to look at the things you buy with that cash as investments and compare how those values have been changing.
For example, if you were a tech investor, you’ve seen far greater than CPI level inflation in the assets you buy over the last 5 years, so holding as cash wasn’t very smart. But if you blindly dumped cash into tech this year to avoid “inflation tax” then you missed out on massive deflation in the asset you buy.
Zooming out to the wealthy, consider commodities, real estate, bonds, stocks, etc. most asset classes have crashed, so holding cash isn’t necessarily a bad idea (at least, it certainly isn’t a bad idea because “inflation is running hot”).