Deluged by apparent facts, arguments and counterarguments, our brains resort to the most obvious filter, the easiest cognitive shortcut for a social animal: We look to our peers, see what they believe and cheer along. As a result, open and participatory speech has turned into its opposite. Important voices are silenced by mobs of trolls using open platforms to hurl abuse and threats. Bogus news shared from one friend or follower to the next becomes received wisdom. Crucial pieces of information drown in so much irrelevance that they are lost. If books were burned in the street, we would be alarmed. Now, we are simply exhausted.

For the longest time, we thought that as speech became more democratized, democracy itself would flourish. As more and more people could broadcast their words and opinions, there would be an ever-fiercer battle of ideas—with truth emerging as the winner, stronger from the fight. But in 2018, it is increasingly clear that more speech can in fact threaten democracy. The glut of information we now face, made possible by digital tools and social media platforms, can bury what is true, greatly elevate and amplify misinformation and distract from what is important.

But in the digital age, when speech can exist mostly unfettered, the big threat to truth looks very different. It’s not just censorship, but an avalanche of undistinguished speech—some true, some false, some fake, some important, some trivial, much of it out-of-context, all burying us.