Perhaps, but I don't think that's what happened. He continued publishing good quality research in quantum theory and quantum computation until I was doing my PhD, which is just before 2014, and likely still does.
As I say, I also disagree with his philosophical (and political) viewpoints. But your dismissal above is based on a pretty shallow reading alongside unfounded personal attacks.
Re:Bayesian Epistemology
by kerkeslager on Friday February 07, 2025 @04:16AM
(#42970808)
Did you read past the first few paragraphs? I think I explained why I disagree with Deutsch pretty thoroughly.
A lot can go wrong with a person's brain between the publication of Deutsch-Josza (1985, 1992) and the writing of the linked post (2014).
I'd also note that the algorithm described is more a work of math than an example of experimental science. It's not creating a hypothesis and testing it, it's writing an algorithm for a (then-theorized) computer system. So I wouldn't say that this lends credence to his ideas on the validity of hypotheses.