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I have a friend who's into homeopathy [...] she's drawn to alternative medicine because it's open source. Like many nerds, she hates closed proprietary systems and loathes bureaucracyIf your friend, or anyone else that way inclined, dislikes modern medicine because of its insular, closed nature then I urge them to support campaigns such as alltrials.net, which advocate open research across medicine. There are a number of people in the industry who truly support an open approach to pharma, and the more people generally shouting about it the better.
I say this because it seems very strange to advocate homeopathy based on its "open source" credentials when the people practising it won't tell you that it patently and demonstrably simply doesn't work outside of the placebo effect. Some alternative medicines do have proven benefits: homeopathy is not one of them.
There is a strong history of alternative medicine medicine practitioners using libel and defamation laws to silence their critics. See, for example, BCA v Singh[1]. Alternative medicine is not open. It is a highly insular community that reacts very badly to criticism, more so than modern medicine.
Let me put it another way: if alternative medicine (and I'm particularly thinking of homeopathy in this case) was so open you would expect people going to receive homeopathic treatment to be told the field was totally discredited by modern science and numerous double blind studies. But they're not. A homeopathic practitioner will not direct you to these studies, or tell you. I don't know how this can be considered open.
[1]: http://en.wikipedia.org/wiki/BCA_v._Singh