Well, we had one guy in Warsaw, who has a phd in computer science and wrote anti-relativity book (SR that is), and wanted to make a habilitation in relativity on Warsaw University. And the whole formal process started, our professors had to write a reviews, etc. Took a lot of effort of...
Mind you, this type of experiment is done by physics students as early as during first year labs (well, at least I did it during first year, but it's done quite early anyways). So I think you can estimate how many people has done it over the years.
(A thought from a struggling addict)
Brain biochemistry sucks... It's unbelivable how some damn hormones can throw your free will into trash.
By the way, I don't how bad of word "damn" is, so if it's not appropriate I'll edit it out. In polish it's a strong word, but acceptable in public.
Ah, yes. I would rank it as 4 out of 5. Sometimes it's a tough read because of the way some topics were historically developed. Some of the authors summaries (as I remember, first chapter or two, are summaries of the whole book) are also a tough read, but I guess that's because it's hard to...