It is impossible to know when a society has reached a breaking point until it happens.
It is impossible to verify who precisely is driving the demand for Chinese consumer goods.
Amidst such success, it is impossible to say how much more success could be achieved.
It is impossible for us to perfectly describe the state of anything at any time.
It is impossible for the species to be a viable population by natural reproduction.
It is impossible to give a brief summary of what has happened in the eastern Congo?
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By their very nature it is impossible to know just how many are in place.
Thus, photons cannot time travel, and moving information around at faster-than-light speeds is impossible.
She said she sympathizes with those who feel that returning to the school is impossible.
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It is impossible to be unmoved by these infants, said Saunders, the neonatal nurse practitioner.
Whether Cheney really believes the insurgents are on their last legs is impossible to tell.
Company builds high-performance, all-electric sports car that most believe is impossible with existing technology.
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It is impossible to predict in advance who will benefit and who will not.
Chief executives understand that it is impossible to banish insider trading without crippling the markets themselves.
It is impossible to imagine ever stopping a debt limit increase the way things are now.
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It is impossible to say from current data how many patients might have been adversely affected.
It is impossible to believe the GOP members of this committee would agree to new revenues.
Two hundred years of American history should have taught us that nothing is impossible.
The birds are being fed locally-bought sprats while fishing in the Caspian is impossible.
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It is impossible to estimate how much money this bounty could generate for Greenland's cash-strapped government.
"The big problem is that sometimes this ball is impossible to control, " said England's Italian manager.
Experts say it is impossible to know the exact number because many kidnappings go unreported.
Now the bad news: It is impossible for an alcoholic to quit drinking in secret.
It is impossible to tell based on the limited amount of data Lilly has provided.
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Conservatives believe in equal incentives and opportunity, but they realize an equality of results is impossible.
He suggests it is impossible to give well and run a company at the same time.
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Linking up singers across the Atlantic, however, is impossible, due to the speed of electromagnetic radiation.
Of course, this being India, the disease of sycophancy is impossible to completely eradicate.
And now the voters have invaded our space, it is impossible to set anything up.
It is impossible to imagine Barack Obama as the liberals' equivalent of Ronald Reagan.
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