Eugenics has not returned. It has not returned because it has never left. We must be careful with narratives about resurgence, whether they be of the despotism of world leaders (which are becoming increasingly pathologized) or popular reactionary politics. These attestations make the same error that certain theorists of eugenics and fascism do. They presuppose that these developments were complete breaks from the governmental rationalities that were concomitant with them. Our age is one of the refined management of life. We are increasingly governed by a rationality that seeks to simultaneously capture and render intelligent the smallest alterations in behavior and the most general population-level data possible.

We are living at the threshold of eugenic modernity.

Conway