Indeed. I do not understand why Siraj felt the need to delete licenses. Surely his students did not expect him to generate all the material himself out of thi

Indeed. I do not understand why Siraj felt the need to delete licenses. Surely his students did not expect him to generate all the material himself out of thin blue air. Even someone like Peter Norvig has a github full of other people's notebooks with proper licenses and attribution. There is nothing wrong with that.