"When the probability of default goes to zero, default is guaranteed, " observes Christopher Whalen, managing director of Institutional Risk Analytics.

FORBES

The probability that it is useless is close to zero.

FORBES: Throw Out Your Strategy? Not So Fast

The probability that your vote will swing the election is almost zero lower than the probability that you will die in a car accident on your way to the polling place.

FORBES: Will You Waste Your Vote? Why?