Internet-based "fake news" is fomenting prejudice and hatred, Pope Francis said on Tuesday, warning our culture "has lost its sense of truth and bends the facts to suit particular interests".
He issued the stark warning in a letter to young people around the world following last October's youth-themed bishops' synod.
"There are huge economic interests operating in the digital world, capable of exercising forms of control as subtle as they are invasive, creating mechanisms for the manipulation of consciences and of the democratic process," the Argentine pontiff wrote.
Social networks encourage contact between people who already think alike, precluding them from debate, he said.
"These closed circuits facilitate the spread of fake news and false information, fomenting prejudice and hate."
The Argentine leader cited prolific Catholic teenager and Internet user Carlo Acutis, who died of leukaemia in 2006.
"He saw that many young people, wanting to be different, really end up being like everyone else, running after whatever the powerful set before them with the mechanisms of consumerism and distraction," the pope wrote. "As a result, Carlo said, 'everyone is born as an original, but many people end up dying as photocopies'. Don’t let that happen to you!"
"If someone tells young people to ignore their history, to reject the experiences of their elders, to look down on the past and to look forward to a future that he holds out, doesn’t it then become easy to draw them along so that they only do what he tells them?"
"He needs the young to be shallow, uprooted and distrustful, so that they can trust only in his promises and act according to his plans."
The synod recognised that many young people no longer see the Church as significant in their lives, but rather as "a nuisance, even an irritant," the pope said.
Some of the reasons for this are understandable, including "sexual and financial scandals; a clergy ill-prepared to engage effectively with the sensitivities of the young... the passive role assigned to the young within the Christian community."
It is important for the Church to be "living", so it can "look back on history and acknowledge a fair share of male authoritarianism, domination, various forms of enslavement, abuse and sexist violence".
"With this outlook, [the Church] can support the call to respect women’s rights... while not agreeing with everything some feminist groups propose."