He got it from Eliezer Yudkowsky's somewhat different paperclip maximizer in a mailing-list post. (My memory of a Twitter thread a while back which included Yud

He got it from Eliezer Yudkowsky's somewhat different paperclip maximizer in a mailing-list post. (My memory of a Twitter thread a while back which included Yudkowsky, saying he'd told Bostrom not to worry about attributing ideas like that to him.)