Who among us could have imagined the post-truth era?

Yet, when ‘alternative facts’ abound, when deception and lies are shrugged off as just spin, when the U.S. president has made tens of thousands of proven false or misleading statements, when fake news penetrates YouTube and Facebook, and then spreads insidiously across the internet, we can no longer deny it. The post-truth era is real — and has tragic consequences.