World's Unknown was Roy Thomas' sadly short lived attempt at bringing adult sci-fi to the comic reading public. In each issue, there was an adaptation of a well known work by a major science-fiction author, including this thoughtful little tale from Fred Pohl. Alas, Sci-Fi is one genre that never sells in comics, and World's Unknown didn't even have any regularly appearing characters to entice readers. Roy, of course, tried again with this books' b/w magazine successor Unknown Worlds Of Science Fiction, which was also brilliant, and equally short-lived. Ralph Reese's art is phenomenal on this piece, particularly as it really just consists of people sitting around. His characters always seem pock-marked & sweaty, and slightly grotesque. Add that to the near photographic style of inking he learned while working with Wally Wood, and you have something like an underground strip in mainstream clothes.
I'm a cartoonist / writer of stuff like "The Infernal Gods Of Electric Disaster" & "Essential Showcase Presents: Stan & Jack". I think the 1970's was the best era in comics' history. And I can prove it.