Text can be convincingly faked at scale. Most meme images are widely reused photos. We do have Snopes and other fact-checkers, but it's only a partial solution.

And yet, fake news does seem to be a problem. Checking provenance of facts and statistics is often skipped, even by journalists, let alone on Twitter.

This suggests that people will have lots of fun resharing deep fakes and won't care much that they're fake, as long as they express some emotion that they agree with.

Give people a fake that they want to believe in, and it's going to be very hard to talk them out of it.