And yet you can still sign up for the ml-class.org and db-class.org, all assignments that you missed and will not be doing "in real time" have 50% penalty, and

And yet you can still sign up for the ml-class.org and db-class.org, all assignments that you missed and will not be doing "in real time" have 50% penalty, and you are free join in at any time. For ai-class.com, however, the decision was made to close it up the moment the classes started.