You may propose a new topic in the Propose New Topics thread if you like but I would suggest reading over some of the currently acitve topics first.
If you are very knowledgable in an area you can jump into an argument. However, unless you really know what you are talking about I suggest that you ask more questions than you make assertions. The reasons for this are that you will look less arrogant that way, that you won't look foolish if you are shown to be wrong and that it is easier since you aren't going to be asked to support your assertions.
With everyone's permission I would like to move this thread to "Is it Science" and change the title to something like: "The Line between Natural and Not" or "Is everything natural testable?"
Please advise suggesting preferred title. This thread no longer belongs in welcome visitors. If we don't move it, we close it.