In mid 30s, spending $35k / year, have about $400k saved (of which I made about 25% by hard work and 75% through dumb luck). Mostly saved in a rather randomly picked stock portfolio. I am making more than I spend ATM, but I guess if all income stopped, I could survive... ? Around 13 years?

Not sure if I'm doing this wrong: http://pastebin.com/H18JijjM