What Is My Number?

At age 40, you ought to have a number. You should have done some sort of spot shac say, by the time i retire, i probably need about this much. If you've not done that spot check, if you've not thought through the exercise of, what is my number? You're kind of like a rudderless ship. How will you know if you're on track or off track, unless you know what the actual destination is?