This is a thread to connect rationalists who are learning the same thing, so they can cooperate.
The "learning" doesn't necessarily mean "I am reading a textbook / learning an online course right now". It can be something you are interested in long-term, and still want to learn more.
Rules:
Top-level comments contain only the topic to learn. (Plus one comment for "meta" debate.) Only one topic per comment, for easier search. Try to find a reasonable level of specificity: too narrow topic means less people; too wide topic means more people who actually are interested in something different than you are.
Use the second-level comments if you are learning that topic. (Or if you are going to learn it now, not merely in the far future.) Technically, "me too" is okay in this thread, but providing more info is probably more useful. For example: What are you focusing on? What learning materials you use? What is your goal?
Third- and deeper-level comments, that's debate as usual.
Looking at it, it seems fanfiction focused, but very active. What would you say about it?
I intend to do NaNoWriMo, and their forums are great during contest time.
It's a diverse crowd. You get the critics you ask for, more or less, and it depends on the kind of story you're writing; people will read the stories they like, so there's self-selection there. You can for example compare the discussion I got here with the more typically shallow analysis here.
It's absolutely focused on fanfiction, but that hasn't stopped people from posting originals, usually to great success.
Mostly, the keys to success are: