OTOH, better to spend your time and effort on the best, than to spend it in varying degrees of frustration with the relatively poor quality of alternatives. In

OTOH, better to spend your time and effort on the best, than to spend it in varying degrees of frustration with the relatively poor quality of alternatives. In this sense, an excellent list of the best resources can indeed be part of a "crash" course. Because, going in, the student may not know what to pick, and without a good instructor/mentor/advisor -- whether in person or in video and text -- less optimal choices may considerably slow things down.