Mr. Epstein’s apparent suicide is, in many ways, the post-truth nightmare scenario. The sordid story contains almost all of the hallmarks of stereotypical conspiratorial fodder: child sex-trafficking, powerful global political leaders, shadowy private jet flights, billionaires whose wealth cannot be explained. As a tale of corruption, it is so deeply intertwined with our current cultural and political rot that it feels, at times, almost too on the nose. The Epstein saga provides ammunition for everyone, leading one researcher to refer to Saturday’s news as the “Disinformation World Cup.”

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At the heart of the online fiasco is Twitter, which has come to largely program the political conversation and much of the press. Twitter is magnetic during huge breaking stories; news junkies flock to it for up-to-the-second information. But early on, there’s often a vast discrepancy between the attention that is directed at the platform and the available information about the developing story. That gap is filled by speculation and, via its worst users, rumormongering and conspiracy theories.

On Saturday, Twitter’s trending algorithms hoovered up the worst of this detritus, curating, ranking and then placing it in the trending module on the right side of its website. Despite being a highly arbitrary and mostly “worthless metric,” trending topics on Twitter are often interpreted as a vague signal of the importance of a given subject.