Hominem Revelio!

So, the most recent chapter of Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality went up, and it has this bit in it:

Harry was wiping sweat from his forehead. “Because things have changed between then and now! Listen, Draco, three hundred years ago you could find great scientists, as great as Salazar in their own way, who would have told you that some other Muggles were inferior because of their skin color—”

“Skin color?” said Draco.

“I know, skin color instead of anything important like blood purity, isn’t it ridiculous? But then something in the world changed, and now you can’t find any great scientists who still think skin color should matter, only loser people like the ones I described to you.

…and I can’t help but wonder if he’s just lost Eric Raymond’s endorsement.