There were plenty of physicists reading those posts when they first came out on OB (the most famous name being Scott Aaronson). Some later readers have indeed asserted that there's a problem involving a physically wrong factor of i in the first couple of posts (i.e. that's allegedly not what a half-silvered mirror does to the phase in real life), which I haven't yet corrected because I would need to verify with a trusted physicist that this was correct, and then possibly craft new illustrations instead of using the ones I found online, and this would take up too much time relative to the point that talking about a phase change of -1 instead of i so as to be faithful to real-world mirrors is an essentially trivial quibble which has no effect on any larger points. If anyone else wants to rejigger the illustration or the explanation so that it flows correctly, and get Scott Aaronson or another known trusted physicist to verify it, I'll be happy to accept the correction.
Aside from that, real physicists haven't objected to any of the math, which I'm actually pretty darned proud of considering that I am not a physicist.
I still wonder why you haven't written a update in 4 years regarding this topic. Especially in regards to the Born Rule probability not having a solution yet + the other problems.
You also have the issue of overlap vs non-overlapping of worlds, which again is a relevant issue in the Many Worlds interpretation. Overlap = the typical 1 world branching into 2 worlds. Non-overlap = 2 identical worlds diverging (Saunders 2010, Wilson 2005-present)
Also I feel like the QM sequence is a bit incomplete when you do not give any thought to things like Gerard 't Hoofts...
I have several questions related to this:
If you visit any Less Wrong page for the first time in a cookies-free browsing mode, you'll see this message for new users:
Here are the worst violators I see on that about page:
And on the sequences page:
This seems obviously false to me.
These may not seem like cultish statements to you, but keep in mind that you are one of the ones who decided to stick around. The typical mind fallacy may be at work. Clearly there is some population that thinks Less Wrong seems cultish, as evidenced by Google's autocomplete, and these look like good candidates for things that makes them think this.
We can fix this stuff easily, since they're both wiki pages, but I thought they were examples worth discussing.
In general, I think we could stand more community effort being put into improving our about page, which you can do now here. It's not that visible to veteran users, but it is very visible to newcomers. Note that it looks as though you'll have to click the little "Force reload from wiki" button on the about page itself for your changes to be published.