RE: Homeopathy: Just water?
Just following one of your links showed a serious error. It almost seems purposely built into the experiment. They took people with "influenza like symptoms", not people positively diagnosed with the flu, then they judged a lessening of symptoms in 48 hours without marking or mentioning when they were infected. Since the flu takes a week or longer to run it's course, these people, or at least the people who got better, did not have the flu. Worse, the data were self reported. Because of that there's no way to judge the data... but in the full paper, I note that age difference has a stronger relationship to recovery than the trial substance (p=0.01 for young vs p=0.05 for older).