Homeopathy is not just alternative, it's downright crazy. I didn't realize how weird it is until I read the wikipedia article on it during an argument. Take a look at some of this genuine 19th century wackiness!
Yeah, but if you don't understand homeopathy then you can't really understand modern medicine. Our entire medical system today is a byproduct of the clash between homeopaths and allopathic doctors that happened in the late 19th century.
You have it backwards. In order to understand why homeopathy doesn't work, you have to have at least a little knowledge on why modern medicine actually does work.
The lack of that knowledge is what homeopaths prey on.
http://en.wikipedia.org/wiki/Homeopathy