Just leaving a note here; I've dropped Coursera "Drugs and the Brain"
Dropped after finishing the first section's quiz; presentation was weirdly scattershot, going into great depth on some details and overviewing others, assumed a lot of chemistry & physics background, and the material turned out to be too low-level to be useful to me in reading up on nootropics even though I was initially pleased nicotine would be discussed throughout the course.
It does leave me time to do Data Analysis, which is going well so far (it's essentially applied R).
Whats your opinion on Cursera overall as a system?
If it's worth saying, but not worth its own post, even in Discussion, it goes here.