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.
Out of curiosity and because of the interest of my brother who has gift for languages we started to learn E-minimal. As its name suggests it is a quite minimal artificial language suitable for studying language properties. Above all it is small enough to aquire it quickly for real use.
I have created an Anki deck for E-minimal to learn the language and succeeded to aquire the complete vocabulary and grammar within about 50 hours (according to Anki). I'm relatively fluent in writing by now (I exchange mails with my brother in it).
E-minimal looks interesting. Can you estimate how many speaker the language has at the moment? Are there websites or mailing lists in which people use the language to communicate with each other?