That isn’t correct at all. It’s more like, “How should you treat evidence that you know/suspect is filtered?” while the literal title would be “What evidence is filtered evidence?” which is a less clear way of saying the same thing. It probably stems from Robin Hanson’s habit of omitting verbs in his post titles, since Eliezer wrote this in the OB days.
I’m not sure if I can parse the title correctly:
I understand it to mean: “What evidence are you using to filter the evidence”. Is that correct?
That isn’t correct at all. It’s more like, “How should you treat evidence that you know/suspect is filtered?” while the literal title would be “What evidence is filtered evidence?” which is a less clear way of saying the same thing. It probably stems from Robin Hanson’s habit of omitting verbs in his post titles, since Eliezer wrote this in the OB days.