This all sounds reasonable, while you are working. But what if you are already retired, as I am? I used the formula and applied it to my income at 65, the year I retired, which puts me in pretty good shape, but not quite at the "double" stage. I don't understand that.

But what about after you retire? I have been retired now for over 4 years and my assets are about the same or higher as when I retired. But I have less time to live, so it should rank higher. Is there a formula for that?