Lots.
> How do we respond to this emergent property, an artistic movement born of the digital age?
Framing disinformation as an Art movement IMHO is wrong. Sure, it shares properties with artworks, but Art is more local in time and space. The initial production of The Rite of Spring (and other orchestral pieces that shocked people) sent people out to the streets. But it didn't do it for months across the whole world and the author was known and legitimately and sincerely was trying to create an emotional and aesthetic experience, not twisting facts to their own end.
Disinformation has two parts, the lie and the believer. Stop the lie from transmitting by cloistering off areas where anonymous individuals can get free megaphones. No more world wide Twitter, Facebook, Instagram, TikTock, etc... except for maybe governments and legit news stations. Billy Bob Joe the Racist Uncle doesn't need a megaphone that can reach a billion people. In fact the world is worse off if people like that stereotype do have that platform.
Stop the believers by subsidizing education and paying teachers what they're worth. Mostly this is a complaint for the USA.
Totally missed the mark there Wired.
The Global Village was a noble experiment. It failed because all the village idiots got together, validated themselves, and made life worse for the rest of us.