I think one problem is that there is obviously a lot of "New Age" vague ideas about, horoscopes, etc. etc. Skeptics tend to think this represents the whole field, but it is important to remember that chemistry and alchemy coexisted for a while - until a clear body of knowledge is established, this is inevitable.
I also think that some phenomena - such as mediumship - just don't lend themselves easily to scientific study. That does not necessarily mean that they are totally invalid.
David |