I did not enjoy this course for the following reasons:
1.In the course presentation it is not specified which are the prerequisites for the learners. In this case it seems to me that the potential learner or student has got to have a good knowledge of modern astrophysics, if he or she wants to fully understand the matter as it is presented.
2. The videoclips by dr. J. Peacock are certainly clever, but are generally rather obscure and uncomprehensible by those who do not have a good knowledge of modern astrophysics. I must confess that I have understood almost nothing from those lectures, and I would not be able to repeat the arguments, even not in detail, to somebody else who does not know the subject.
3. The course slides are oftenj obscure, particularly those of weeks 3 and 4. Week 3 slides from page 13 to 42 inclusive are almost incomprehensible (even when supported by the video lecture), those of week 4 are about 50% unclear. Week 1 and 2 slides are better understandable.
4. In the philosophical part, the stress is on Duhem's, Popper's and Kuhn's theories, but for example, the Hume's critic of the cause concept is not even mentioned.
5. In the videos it is not possible to see what dr. J. Peacock writes on the whiteboard (problem of illumination during making of the videos?)
6. There is no real forum. The majority of threads are either instructor created, and contain reference for additional readings, or are rather old, dating eight monts or one year ago. So, there is no real feedback and discussions with other peers in the course.
7. I found the article, suggested as additional reading, by O. Lahav and M. Massimi, Dark Energy, Paradigm Shift, and the Role of Evidence, as well done and instructive.