You're speaking of classical homeopathy, not practical observation. In practice there are many homeopathic products with varying dilutions, many of which have a meaningful amount of the substance, and therefore the distinct possibility of a biological effect.
You're speaking of classical homeopathy, not practical observation. In practice there are many homeopathic products with varying dilutions, many of which have a meaningful amount of the substance, and therefore the distinct possibility of a biological effect.