|     home
It is no great wonder if, in the long process of time, while fortune takes her course hither and thither, numerous coincidences should spontaneously occur.

Rule of 72

Take the interest rate and divide into 72. This tells you "approximately" how long it will take for your money to double.
Example:72/11.6 = 6.2 Years

Now in 2021, money invested in money market funds at 1% the doubling time is about 72 years,
and at 0.01% itíll be about 7200 years.