While the markets like certainty and wanted a clear winner either way, they may get a more long-lasting certainty caused by the doubt.
Despite these advances, the unfavourable structural and functional outcomes still remain high, and treatment with laser photocoagulation carries itself a certainty of lasting peripheral visual dysfunction.
And men who feel irrelevant will behave like perpetual teenagers, refusing to make lasting commitments, cheerful in the certainty that whatever happens sexually, a "woman will take care of things".
And last, but certainty not least, how about an energy revolution in the power sector?
They appreciated the beauty and solidity of their lasting structures, embodying past comforts and certainties, collectives and projects.
How long this stage might last is anyone's guess, but with certainty, we are not built to last indefinitely.
Federer pushed and probed, Djokovic stood firm, both men delighting Centre Court with tenacity and athleticism and refusing to the last to offer certainty as to the result.
Gill Furniss, Labour's shadow steel minister, said: "After months of worry, steelworkers and their families in South Yorkshire at last have some certainty over what the future holds.
Now, at last, a little certainty has crept back in.
But even with Mr. Letta's acknowledged ability to negotiate, there is no certainty that this compromise government will last long.
"The financial crisis can't last forever," he says, expressing more hope than certainty.
