'Facts hold a sacred place in Western liberal democracies. Whenever democracy seems to be going awry, when voters are manipulated or politicians are ducking questions, we turn to facts for salvation. But, we have entered an age of post-truth politics. Facts are losing their ability to support consensus. How can we still be speaking of “facts” when they no longer provide us with a reality that we all agree on? The problem is that the experts and agencies involved in producing facts have multiplied, and many are now for hire. If you really want to find an expert willing to endorse a fact, and have sufficient money or political clout behind you, you probably can. The authority of facts has actually been in decline for quite some time. Newspapers might provide resistance to the excesses of populist demagogy, but not to the broader crisis of facts.'