I have a question that I am sure is easy to answer. I am looking for a word used to describe a state of Teetering or Brinkmanship. examples: hmmmm... Trying to balance a sharpened pencil on it's tip. The pencil is always teetering. Paying golf, the ball in flight is always suseptable to any wind changes etc...( damn that wind) A rocket is fired to travel 1,000,000 light years but ends up 10,000 light years off course because a small meteorite hit is 1000 kms into it's journey. A pendulum on a string swings to it's highest point and at this point neither wants to go up or down. I am sure you get the drift of what I'm looking for. I've been calling this effect a "Teetering" point in that the object is constantly in a state of potential movement. Any ideas????