Definitely an interesting thought experiment. This article assumes 7.1% annually, and gets that by choosing an arbitrary start and end date of stock returns. In

Definitely an interesting thought experiment. This article assumes 7.1% annually, and gets that by choosing an arbitrary start and end date of stock returns. In reality, it seems to be more like ~4%, which makes this conclusion much different. http://www.nytimes.com/interactive/2011/01/02/business/20110102-metrics-graphic.html?_r=0 http://www.nytimes.com/interactive/2011/01/02/business/20110...