In March, I discussed Joy Christian's jihad against Bell's theorem.
Now you may buy a book he was allowed to publish; if you do so, you will be among a dozen of people in the world who have "invested" their assets in this way.
In the text a month ago, I explained that Bell's theorem can't really be reverted because it is, you know, a proven mathematical theorem. I have linked to my presentation of the proof and related issues.
And I have reviewed some detailed errors that have been known to me for quite some time and that were clearly articulated in a recent paper by Richard Gill. There's an obvious error in Christian's proof; he replaces \(\beta(\lambda)=\lambda\beta\) by \(\beta\) at some point which has the unfortunate effect of changing \(\lambda^2=1\) to \(\lambda\) which allowed him to cancel an "unwanted" term that doesn't cancel if you do things right.
Moreover, even if this error weren't there, his setup isn't a plausible description of the situation because some things that need to be real (both classically and quantum mechanically), such as the expectation values of the spins etc., take values in obscure algebras. So his "model" violates the assumptions of the problem – whether the clearly stated mathematical assumptions of the theorem or the assumptions that are truly needed if you want to describe the actual physical situation.
Scott Aaronson [main URL in this blog entry],a quantum computation guy, has written a text about the Joy Christian phenomenon, too. Hundreds of thousands of virtual dollars are being shot in between the two Gentlemen.
Most of Scott's text is composed of popular, mostly ad hominem summaries; he reveals that he is in a complete agreement with your humble correspondent on this issue. However, the attacks are nothing relatively to Joy Christian's "contributions" to the thread. He claims that Richard Gill is an incompetent mathematician because it's been said to him by Joseph Doob, a mathematician who died 8 years ago and who was 94 when he did so. That's quite a powerful argument – but only from Joy Christian's viewpoint.
The most important "positive evidence" that Joy Christian offers is that he personally knows some other guys who study the foundations of quantum mechanics. That's great. I've been meeting Shelly Goldstein for 4 years at Rutgers before I became the fellow Fellow of Tom Kelly at Harvard who married his daughter. And I could continue with similar stories. My point is that those things are totally irrelevant for the validation of some particular technical claims. At the end, I don't think that Shelly's papers are right, either, although the errors are more subtle and less stupid than Joy Christian's errors.
In my blog entry written in March, I claimed that Joy Christian had only read the abstract of Richard Gill's paper, not the paper itself, even though he had published a "refutation of the paper". My conclusion was based on the fact that Joy Christian had clearly ignored every single point that Gill had made (and proved) in the paper.
You might have thought what I committed was a cruel unproven accusation or at least something that Joy Christian would surely deny. But you would be wrong! Here is Joy Christian's own explanation of the method that allowed him to decide that Gill's paper "is" wrong:
[Gill] is so incompetent that he does not even know the difference between a bi-vector and a multi-vector. Just read his abstract to see for yourself...Cool. I didn't expect an experimental proof of my bold assertion to be this explicit! ;-) Needless to say, the terminology chosen for some multivectors or bivectors has nothing to do with the reasons why Joy Christian's papers are rubbish (much like seven-spheres have nothing to do with Bell's theorem). Moreover, they're really bivectors, as Gill wrote, and even this modest complaint by Joy Christian is just wrong.
As for Richard Gill, he is evidently an incompetent mathematician. One only needs to read his abstract to recognize this fact. This was confirmed by Joseph Doob...
The thread at Scott's blog is full of various similar ad hominem attacks and contains almost no science. But when you look at it and realize that for this repeatedly copied-and-pasted crackpot nonsense with trivial high-school errors in the algebra that tries to reject Bell's theorem, Joy Christian lives a prosperous life in which he doesn't have to work at all and he's periodically invited to Azores and other places by FQXi, the funding agency mainly for crackpots like himself, you must agree that it's kind of incredible.
I was told that when Joy Christian came to the West, he didn't speak English at all. In combination with his skin color etc., you may have guessed that the creation of this crackpot monster was another achievement of the political correctness that has run amok.