🚀 go-pugleaf

In article <MINSKY.12342324547.BABYL@MIT-OZ> MINSKY@OZ.AI.MIT.EDU writes:

(discussion of fallacies in Dean Drive mechanics)

:...I wrote back (to John Campbell, who was championing the Dean Drive 
: through the science-fiction magazine "Amazing", later "Analog") 
:pointing out that every real scientist would sacrifice an
:arm, leg, or gonad cheerfully to be able to PROVE that all the others
:were wrong.  It went on and one, with Ron Hubbard's Dianetics, too,
:and a silly machine that work just as well when you replaced the
:hardware by a circuit diagram of it.

John Campbell had a lot of fringe science interests, but I thought that
his involvement with L. Ron Hubbard's Dianetics ended when he became
disgusted with the way Hubbard was running the Dianetics organizations -
as his personal fiefs, with no others allowed to contribute to Dianetic 
research.  A recent biography of Hubbard quotes Campbell as saying that 
to the extent others can duplicate the results and perform useful research, 
that Dianetics would be a science; otherwise it would be a cult.

Did he later come up with specific disproofs of Dianetic theory?