So you doubled your money.

So you doubled your money.
What if, in the same period of time, your cost of living (COL) also doubled?
Well, at least you broke even, right?
Wrong. Because the IRS wants tax on your "double" even though you didn't gain any purchasing power.
In this way, government ROBS you of your capital through inflation.

Rule of 72
Years to double principal at various interest rates.
Years to halve purchasing power at various inflation rates.
Includes formula for exact calculations also.
The Rule of 72 - -Interest and Inflation.

Sovereign Living
Includes a couple of links about the "income" tax.
Sovereign Living Articles.