On the subject of different investment periods. It is worth noting that that 69 to 82 was one of the longest secular bear markets in history. Holding the index would have netted you (post inflation) almost nothing.
Does this statement take into account reinvestment of dividends?
The longer the investment horizon, the more important is the dividend income.
For the period 1900 to 2009 the historical inflation adjusted returns (Real) for US equities is 6%. Capital gains accounts for 1.7%.of that.
Capitalising $1 at 1.7% for 109 years = $6
Capitalising $1 at 6% for 109 years = $573
I’m not sure what the dividend yields were through 1969-1982 but I suspect Buffett was a pig in mud compounding cash flow yields.
Despite the doom and gloom, I see the same opportunities now.