That is why experts often publish books and articles, which is then corrected by other experts (or random people if it’s a typo). I’ve read a lot of books and I haven’t met any of their authors. But I’ve still learned stuff.

Most of us don't have the domain expert in range, particularly pre-internet. I was merely suggesting you ask the most expert of the domain you have access to and work your way up the tree of knowledge from there.

However, the sibling commenter about books, journals, etc., is also an excellent suggestion.