Homeopathic medicine is impossible for one simple reason: the water cycle. If we are to believe that water or other suspensions carry an "imprint" of bioactive compounds that our body can readily utilize even at .01 ppm, then you must also accept that unhealthy and harmful compounds imprint as well. Given that almost all water on earth is recycled through natural or artificial means, you would never know what you were actually putting into your body IF homeopathic assumptions were true. Luckily they are not.