"Intentional incoherences" have become his primary theme. That is, he believes many competent, honest people were forced (by the CIA, naturally) to do useless work on the Apollo project, and in protest they hid many clues that he is the first to discover. They usually take the form of some unworkable circuit, design or subsystem. Basically, if something was used in Apollo, that proves it couldn't work -- even if the exact same design is widely used outside the space program.
Of course, they all worked just fine, he is simply unable to understand them.
I'm strongly reminded of Dr. John Nash in A Beautiful Mind and his strong delusion that the Russians were hiding secret messages in public newspapers and magazine articles that only he was smart enough to decode. This, more than any other reason, is why I strongly suspect paranoid schizophrenia -- with the caveat that I am not a psychologist or psychiatrist, etc, etc.
Yet there's a psychological phenomenon -- with the French name of Folie à deux, interestingly enough -- in which otherwise normal people can pick up the delusions of someone who isn't healthy. I think this is one of the reasons it's necessary to debunk the Apollo deniers and other pseudoscientists such as creationists (evolution deniers), global warming deniers, etc.
