Chicklin, if you are arguing from a similar position to Nox, then fair enough for you.... but that makes your position an argument from personal experience, which is always weak if you want to convince a wider audience... For that, you need objective, credible, verifiable evidence.
All too often I hear the argument that being sceptical, or adopting an objective frame of mind with respect to the spiritual is evidence of being "close minded", but nothing could be further from the truth.
For spiritualism to work at all, you need a credible hypothesis. For spiritualism to work, it would mean that ;
a. People have an immortal soul or something similar, and that it goes "somewhere" after corporeal death, but remains as an entity capable of interacting with our world.
b. We can "communicate" with such entities by means of inanimate objects (ouija boards and the like), or via a medium... a human "sensitive" who somehow can hear said entities.
c. They cannot communicate clearly, but only by inference or veiled comment that requires interpretation.
d. The above process cannot be shown to work when observed by impartial researchers, or by using an stranger selected at random by researchers to present to the pyschic.
Now ,add to this mix the number of occasions where mediums have been conclusively shown to be charlatans, frauds or even entertainers, such as Derren Brown, who by use of body reading, suggestion, and plain old fashioned research on their audience, are able to plausibly "demonstrate" pyschic abilities.
All of the above violates so many fundamental principles of our understanding of physics, cosmology, chemistry and biology ( and even some branches of theology, come to that ) that it must be extremely unlikely...and despite what you say about science knowing nothing, that knowledge about the fundamentals of the universe is pretty strong.
-ctd