I'd think Eliezer was funnin' me. Whenever any committed empiricist purports to have a proof of any claim beginning with "There are no X such that..." or "For all X..." I know he's either drunk or kidding.
If it seemed that Eliezer actually believed his conclusion, I'd avoid leaving my wallet within his reach.
Eliezer once wrote that "We can build up whole networks of beliefs that are connected only to each other - call these "floating" beliefs. It is a uniquely human flaw among animal species, a perversion of Homo sapiens's ability to build more general and flexible belief networks.
The rationalist virtue of empiricism consists of constantly asking which experiences our beliefs predict - or better yet, prohibit."
I can't see how nearly all of the beliefs expressed in this post predict or prohibit any experience.