We are in our mid/late 40's, two teen's, with a high income and are high net worth. My wife is not convinced we can retire though. I tried to explain there could always be a catastrophe (lawsuit, financial collapse, etc...) but generally speaking we have enough to fire now. I explained the most likely worst case scenario, if we ended up in a deep recession for example, was we might have to spend less as we do spend a fair amount. I should add we will have to private pay for medical, have no pension, and currently live in California (but not one of the super expensive areas). So, without getting in to our particulars what do you consider "enough" that you would feel relatively safe retiring in your mid/late 40's?