The difference between victory and defeat can come down to the smallest of margins. In the recent winter Olympics, this was easy to see, sometimes the difference between gold and silver was measured in hundredths of a second. On the rugby pitch it may not always be so clear even when it is. One missed tackle because you weren't quite strong enough or fast enough at the right part of a game is all it takes to tilt momentum toward or away from you. During the last 30 seconds of your met-con workout do you go easy or push as hard as you can? On the fifth rep of your fifth set of five squats do you go for it knowing you might have to dump or do you just call it a day and rack your weight after the fourth?
sometimes, little things don't make a difference and sometimes they do. Add enough little things up and you can reach what scientists call a "tipping point". A tipping point is defined as "the levels at which the momentum for change becomes unstoppable." All the work you do or don't do, contributes in one way or another to a tipping point in your performance. The question you need to ask yourself is "which tipping point am I headed to?" Are you on the verge of success or failure?
Check out this cool interactive success/failure "musical" by the New York Times.