This was my first MOOC and I took it on its first offering. I found the course to be thoroughly engaging and immediately became hooked on MOOCS. This was not only because the subject matter was so interesting but also because of Professor Ng's enlightened use of the internet to teach complex material. Indeed, although I had been a university professor for 40 years, this course changed my view of how to provide higher education. Letting students rewatch lecture videos as often as they wish, retake tests until they have it right, everything "open-book" and providing hands-on experience with real tools and data, makes the subject matter completely accessible and learnable by the interested student.