A person who created such a design would need to be very clever, yet very foolish.
I'm confused. Are you ignoring the faction that would be clever enough to create these designs and would do so for fun; calling such people foolish for having this hobby; or assuming that they don't exist?
I just didn't address them.
People who design and build Rube Goldbergs just for fun are (if successful) necessarily clever; very, very few of them believe that the resulting machines are actually useful in any meaningful sense, I think, so there would be no grounds for considering them foolish.
Bloggingheads.tv can't exactly call up, say, the President of France and get him to do a diavlog, but they have some street cred with mid-rank celebrities and academics. With that in mind, how would you fill in this blank?
"I would really love to see a diavlog between Yudkowsky and ____________."