### Comment:
Inflation at the time was crazy so [real returns](https://www.investopedia.com/terms/r/realrateofreturn.asp) ended up more modest.

### REPLY:
Not to mention that since the Great Depression savings rates have never been 28%.  Prime rate didn’t exceed 20% in the 70’s and banks pay far less than prime on savings.  
 https://www.gobankingrates.com/banking/interest-rates/see-interest-rates-last-100-years/

### END.