I think UIV is a meta-ethical theory, and Roko has changed his mind regarding its correctness. Roko has an unfortunate habbit of deleting his old writings, including descriptions of UIV itself as well as his retraction, so I’m going by memory here. Actually I’m not sure if he formally retracted UIV, but I remember seeing (now deleted) comments on LW to the effect that he no longer thinks it’s right.
I think UIV is a meta-ethical theory, and Roko has changed his mind regarding its correctness. Roko has an unfortunate habbit of deleting his old writings, including descriptions of UIV itself as well as his retraction, so I’m going by memory here. Actually I’m not sure if he formally retracted UIV, but I remember seeing (now deleted) comments on LW to the effect that he no longer thinks it’s right.