The point of modern propaganda isn’t only to misinform or push an agenda. It is to exhaust your critical thinking, to annihilate truth. - Michiko Kakutani

The assault on truth and reason that reached fever pitch during the first year of the Trump presidency had been incubating for years on the fringe right. Clinton haters... and Tea Party paranoids who claimed that environmentalists wanted to control the temperature of your home and the color of your cars... hooked up, during the 2016 campaign, with Breitbart bloggers and alt-right trolls. And with Trump's winning of the Republican nomination and the presidency, the extremist views of his most radical supporters—their racial and religious intolerance, their detestation of the government, and their embrace of conspiracy thinking and misinformation—went mainstream.

In his 2007 book, The Cult of the Amateur, the Silicon Valley entrepreneur Andrew Keen warned that the internet not only had democratized information beyond people’s wildest imaginings but also was replacing genuine knowledge with “the wisdom of the crowd,” dangerously blurring the lines between fact and opinion, informed argument and blustering speculation.

Deconstruction, in fact, is deeply nihilistic, implying that the efforts of journalists and historians — to ascertain the best available truths through the careful gathering and weighing of evidence — are futile.