[gipp]

> Because the observables correspond to the reference frame of the observer and they exist in the complex Hilbert space, it must be concluded that, unlike reference frames in classical physics, quantum observables correspond to an observer’s reference frame in thought.

The whole argument rests on this sentence, which is just pure nonsense. There's nothing about Hilbert spaces that has anything to do with conscious thought; the conclusion is a complete non sequitur. The context of the sentence doesn't add anything to support such a notion, either.

This is just another in a long line of people putting way too much stock in the very unfortunate choice of the word "observation" as used in QM.