To play with the numbers yourself, File->Make a Copy. My personal numbers: I upped cap gains to 30% since apparently that's coming. If I get a $4M check when I

To play with the numbers yourself, File->Make a Copy. My personal numbers: I upped cap gains to 30% since apparently that's coming. If I get a $4M check when I'm 20, I get $2.8M after taxes. At a $100k burn rate (leaving the investment yield and inflation at 5% and 3% respectively), I'm set 'til I'm 68. I'm pretty happy with that. That gives me 48 years to angel invest, do another startup, marry someone who works and cuts my burn rate, etc.