I have become a big fan of Brilliant.org since being introduced to it this past August. In the new year, I have made a very concentrated effort to dedicate two hours of every morning to working through problems and studying various topics that I become interested in. While it has helped me push past some of the blocks that I have run up against in traditional math education, there are some things that remain the same.
Often when learning math, there is that moment in which an example is being worked through and you become completely lost at a step. It's not for lack of concentration. It's not for lack of effort. It just wasn't explained why one step was the next step. When it happens, we are left wondering whether the author of the example must think that the reasoning is so obvious that they shouldn't have to explain it and, if this is the case, what should have learned first in order to make this obvious? Adding complete detail can be incredibly tedious which is why I applaud Brilliant.org for using a wiki as the framework. Someone can come through and start a topic's wiki at a high level and provide a few hastily done examples, the next person can come through and realize that there should be more detail and provide it. In a traditional wiki, this editing pass is managed by talk pages where editors can discuss a change before it gets made. This is important for a couple reasons : 1. It helps new editors understand how current community members are thinking of the topic, 2. it helps new editors feel welcome to participate in that conversation.
These conversations have been proven to help with every open platform, whether its open source software development communities or wiki communities. On Brilliant.org, I am honestly not sure where to have that conversation to say "Hey, I understand that this step works, but I don't understand how you figured that out. I am sure I am not the only one, so lets think about what we can do to make this a better resource. I am happy to help." So this is why I'm posting a note here. If I am misunderstanding the features, please help me by commenting below.