In last month's post I introduced you to FIREcalc (http://www.firecalc.com/), one of the best free retirement calculators on the internet. FIREcalc is normally used to estimate one particular instance of shortfall risk: the risk of outliving one's money in retirement. But last month, we worked throu...The post What is an Acceptable Level of Shortfall Risk? appeared first on Chris Minnucci, The Do-It-Yourself Investor.