And even getting up to that deadline poses huge problems for the economy because the global economy begins the possibility of the impossible, the unthinkable, which is a U.S. default.

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Because each of these three potential outcomes represents a very real possibility, it has become nearly impossible to predict where tax rates will be come January.

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And for those suffering from depression, I know how dark and endless that tunnel can feel, but if happiness seems impossible to find, please hold on to the possibility of hope, faint though it may be.

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With the DUP seeking to capture the unionist centre-ground, Tom Elliot's assertion that he wouldn't serve under Sinn Fein as deputy first minister sounded like another signal that the UUP is shifting into TUV territory (in fact the mathematical possibility of this outcome appears so remote as to be nigh on impossible).

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But he says it's not impossible that a drug could make a whole swath of cancers worse, and that possibility may not have been ruled out yet.

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Other officials told the panel they were working to solve technical challenges with the new system, including a slim possibility that powerful energy waves created during a launch could injure astronauts or make it impossible for them to perform basic tasks.

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