Your days are numbered, you just don't know what the number is yet. But rest assured, when your final day arrives, people will talk about you, your potential and your days in very finite terms. If you could see the final numbers in a pie chart today, would the proportions of certain slices make you uncomfortable? I'm pretty sure I wouldn't say, "oh crap, I really need to play more Starcraft!" Then again, I'm not sure I'd say I needed less, either.