Throughout history, humans have always indulged in certain irrationalities and held some fairly wrong-headed beliefs. But in his newest book, philosopher Lee McIntyre shows how we've now reached a watershed moment for ignorance in the modern era, due to the volume of misinformation, the speed with which it can be digitally disseminated, and the savvy exploitation of our cognitive weaknesses by those who wish to advance their ideological agendas. In Respecting Truth: Willful Ignorance in the Internet Age, McIntyre issues a call to fight back against this slide into the witless abyss. In the tradition of Galileo, the author champions the importance of using tested scientific methods for arriving at true beliefs, and shows how our future survival is dependent on a more widespread, reasonable world.

Throughout history, humans have always indulged in certain irrationalities and held some fairly wrong-headed beliefs. But in his newest book, philosopher Lee McIntyre shows how we've now reached a watershed moment for ignorance in the modern era, due to the volume of misinformation, the speed with which it can be digitally disseminated, and the savvy exploitation of our cognitive weaknesses by those who wish to advance their ideological agendas. In Respecting Truth: Willful Ignorance in the Internet Age, McIntyre issues a call to fight back against this slide into the witless abyss. In the tradition of Galileo, the author champions the importance of using tested scientific methods for arriving at true beliefs, and shows how our future survival is dependent on a more widespread, reasonable world.

How we arrived in a post-truth era, when “alternative facts” replace actual facts, and feelings have more weight than evidence. Are we living in a post-truth world, where “alternative facts” replace actual facts and feelings have more weight than evidence? How did we get here? In this volume in the MIT Press Essential Knowledge series, Lee McIntyre traces the development of the post-truth phenomenon from science denial through the rise of “fake news,” from our psychological blind spots to the public's retreat into “information silos.” What, exactly, is post-truth? Is it wishful thinking, political spin, mass delusion, bold-faced lying? McIntyre analyzes recent examples—claims about inauguration crowd size, crime statistics, and the popular vote—and finds that post-truth is an assertion of ideological supremacy by which its practitioners try to compel someone to believe something regardless of the evidence. Yet post-truth didn't begin with the 2016 election; the denial of scientific facts about smoking, evolution, vaccines, and climate change offers a road map for more widespread fact denial. Add to this the wired-in cognitive biases that make us feel that our conclusions are based on good reasoning even when they are not, the decline of traditional media and the rise of social media, and the emergence of fake news as a political tool, and we have the ideal conditions for post-truth. McIntyre also argues provocatively that the right wing borrowed from postmodernism—specifically, the idea that there is no such thing as objective truth—in its attacks on science and facts. McIntyre argues that we can fight post-truth, and that the first step in fighting post-truth is to understand it.