(Workplace statistics do not cover all industries, so it is impossible to declare one sector the most deadly, or second-most, and so on).
It is impossible to declare with certainty if the SIF prevented these fatalities as it is not possible to know if overdoses occurring in the SIF would have occurred elsewhere.
And in November, a report from the famously liberal American town of Portland revealed that lesbian bars had all but ceased to exist – because it was impossible to declare an event "woman only" or "lesbian only" without entering the minefield of gender identity politics.
A top editor at the magazine said that it was impossible to declare who was right and who was wrong, since Ferguson had written an opinion piece.
"Why France is impossible to reform" declared the cover of L'Express magazine.
The New York Times this week declared Lochte "impossible to dislike", declaring he "has the personality of a golden Labrador".
In most artistic pursuits, it's impossible to objectively declare one person "the best" at what they do.
As a result, it is virtually impossible to confidently declare how a particular European bank compares in size with an American bank.
The furious repression of democratic reform between 1792 and 1796 by prime minister William Pitt and his close friend and home secretary Henry Dundas, made it impossible for Burns to declare his support openly for the Scottish popular reform organisation, the Friends of the People, led by a young lawyer from Glasgow called Thomas Muir.
"It's impossible to catch us," declared the Queens-born tycoon, surrounded by brass, marble and a big TV showing Fox News.
