Fake news is typically used to inflame, influence, and destabilise political debate, drive culture wars, undermine traditional journalism and to promote appalling ideologies.
Misinformation has been with us for centuries, but social media has greased the rails when it comes to reach and availability. Fake news plays on our hopes and fears. It feeds any confirmation bias we might have, and it reinforces our beliefs and undermines our sense of enquiry or search for the truth.