Thank you! This is much kind.
1) You can use "the reproduction of snails", or "Call of Duty mastery", or "Learning Chess > Chess psychology > Visualization techniques"... There is no end to what you can learn. The sky is the limit!
2) Thanks I'll fix that at the next update, if you mean the grey colour of the box.
3) This is a revolutionary tool because you can see how a domain is organized, so you can catch in one glance what you can learn, and select the most interesting to you, with very high Signal to Noise ratio. This is probably better than Wikipedia when it comes to strolling around the fields of knowledge. This is a bit preposterous to say, but I say it.
To add it in a academic workflow, you just type the name of your related domain, and don't be afraid to be very specific. TOK (tree of knowledge) will give you most pertinent information to help you understand and grok all of the complex information for you. I'll add a feature soon to generate quizz/coursework for any given node. Stay tuned.
I'm happy I got only 4 upvotes because I couldn't handle a heavy load for now. And I'm thankful for these upvotes. The website will stay up for the time being. If one day it is down, send me a email and I'll give you the code.
See you!
