Quote:
Originally Posted by Danny Fekete
Edit: Why do you think "hard sciences" are qualitatively different in this case?
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Because you can probably find lots of good and free information on the web about, say, economics or business. I don't think you'd find it so easy to find such information about electromagnetism or quantum mechanics. You can find good individual articles, yes, but putting it together in such a way that it teaches the subject from start to finish would be very difficult.