Do or do not. There is no try.

What does it mean to fail? This is a question I've been pondering for the past few days as my weight-loss plan nears its terminus. See from the moment I set out to tackle this project it seemed I had always been ahead of the curve. Of the 45 pounds I set out to lose I was halfway there with nearly two-thirds of my planned weight-loss term to go. It seemed success was a fait accompli.

But as I noted many times, the closer you get to the end the tougher it gets. The ability to lose weight decreases exponentially when there's less of it to lose, or in mathematical terms, there is an asymptote as the limit on your presumed time of weight loss approaches infinity. In the case of weight loss, like drug addiction or a Rubik's cube, your job is never done, and you'll have to keep on working on it for the rest of your life no matter how close or comfortably settled in you are to that asymptote.

Now, I haven't opened a calculus textbook in 10 years, but the concept of a mathematical limit of a function has started to creep back into my consciousness, not because I suddenly feel as though I missed my calling as an astrophysicist, but because perhaps my body is reaching that asymptote. After all, my rate of weight-loss has declined steadily over the last two months or so and I've seemed almost terminally stuck between 175 and 182, struggling to get ever closer to the finish line while time continues to run low.

Just four days away from the end I have chipped away steadily, bit by bit, and I'm awfully close to getting there, but if I am for some reason unable to get through the last pound that stands in my way before this Saturday I'll have to wonder. It will be hard not to think about whether or not I should have had one fewer beer or if I shouldn't have consoled myself after the Blackhawks lost Game 3 of the Stanley Cup Final last night by munching on some black pepper kettle chips.

I will have to ask myself two unsettling questions. Did I fail? Was it possible for me not to fail?

More visual evidence that no one looks good exercising

Oh yeah. That's me right there to the right, looking less like an athlete and more like a cramping sloth whose shorts are way too tight as I make the final turn at a 10K I ran this past weekend in the lovely Newport section of Jersey City. My friend Theresa took it upon herself to snap this shot of me passing the girl I was using as a pace-setter for the final mile and while I would have preferred she didn't share it with the outside world, such is life sometimes. There I am, dragging myself through the last half mile of the longest distance I had ever run with my noticeable green and yellow shoes that are far too snazzy for a man with my fashion sensibilities.

On the plus side, though, it's hard to lose me in a crowd.

So yes, a few weeks after I ran an actual organized race for the first time, I decided to test my mettle again by doubling the distance. This may not have been wise. After all, 6.2 miles, while not an insurmountable distance, was not something I had ever pushed myself to. In fact, I often opt for the elliptical rather than jogging outside these days because I know my ankles and knees have gotten somewhat balky and running on pavement for roughly an hour straight isn't really going to help that. What's more, when you get past three miles or so, it's wise to kind of train for these things and gradually improve your mile base rather than just throwing yourself into the fire. My training involved exactly one run of 5.5 miles a week earlier, which nearly killed me since I may (definitely did) have had too much to drink the night before.

But hey, when you've lost 40 pounds in five months, I suppose you take it upon yourself to prove just how physically fit you are by indulging in these feats of endurance. If you're lucky like I am, the result of this is, well, survival. Beyond surviving, if you can deal with the lingering pain for at least a little while you're ahead of the game. In my case that pain was pretty ever-present, as I could feel some nasty discomfort hitting my right hip about halfway through the race. Fortunately for me, that is gone now, but my legs were extremely stiff for the first 48 hours after the race and just now are starting to loosen up a bit on me. All of those aches made the fact that my shoe got soaked when I stepped in a puddle during the first half mile seem immaterial by comparison.