The site looks interesting, but it's difficult to find the information that is related to the discussion. Does this site have a page that discusses specifically entanglement? EPR paradox? Bell inecuality? I'd like to see a link to the specific relevant page and not a link to the general site.
Here is the course on quantum entanglement [1] but depending on prior knowledge it may be wise to first go through the courses on classical [2] and quantum [3] mechanics. He tries to keep everything as self-contained as possible but does not go through the very basics things like Lagrangians and Hamiltonians every time.