I'm a 32 year old physics PhD, working (so far) on the oh-so-fashionable subfield of graphene and carbon nanotubes. I took Quantum field theory, which is a little unusual for an experimentalist (though not positively rare). I have a background in programming, and a moderate degree of interest in AI.
I came here by way of the Methods of Rationality. After reading that, and upon seeing that there was a sequence on quantum mechanics, I had a suspicion that it wouldn't be terrible. This suspicion was vastly exceeded. I never encountered the slightest technical flaw, which is better than many physicists can produce on the subject, let alone philosophers and amateur physicists.
I began wandering and seeing what else there was, and it is good. The atmosphere also seems quite good around here, so I thought I'd join the community rather than treating it as a collection of essays and comments.
So here I am.
~~ Edited to add: ~
I am not sure how this got so many upvotes. Was it the praise? The brevity? That I'm a physicist? The score just stands out on the page a bit, and I'm not at all sure why.
It's because you're a physicist who commented about the QM sequence. I, and apparently a lot of other people who've read it, really wanted to know if we've absorbed any mistakes. Thanks for giving a more informed opinion than most of us can bring. :)