[MBAtarga]

That engaging data analysis doesn't allow enough variability in the model to work for me. The wife will likely take SS security earlier than me - even though we are the same age. I've got an excel model that I built that takes into account the various SS numbers as well as an expected budget - with a few years of additional costs for insurance before we are Medicare eligible. I can vary the market return numbers and inflation rate to see what occurs with our 401k balances.