Why CAGR matters more than total return
A 100% total return looks great — until you realise it took 20 years. CAGR normalises every investment to an apples-to-apples annual figure.
Doubling time uses the Rule of 72: divide 72 by your annual return % to estimate the years to double your money.
Inflation-adjusted (real) return strips out money-supply growth. A 7% nominal return with 4% inflation is only 2.9% in real purchasing power.