Hi! Thanks for taking the time. Here are some answers: The long username shouldn't be a problem anymore. Yes, I want it to be a discussion forum, people can p

Hi! Thanks for taking the time. Here are some answers: The long username shouldn't be a problem anymore. Yes, I want it to be a discussion forum, people can post links, questions, comments. I also want it to be novel. The entropy formula is described in the FAQ, it might not be totally scientific sound but I believe it somewhat describes the informational content of the thread. Regarding the unit circle; [-1,1] is isomorphic to S1 if we identify -1 and 1 as the same point.