I feel bad for asking such a question, because I know there is probably a simple answer.
However, I feel baited after reading a conversation of the meta thread about what questions were and weren't appropriate. I felt offended when I read that questions which didn't have answers, e.g. speculative questions, could not be asked. How can we not ask questions about challenging, interesting, and speculative aspects of life and reality?
Newton and all the greats created theories solely on circumspection, analyzing of phenomena, asking questions no one had before. Einstein was stubborn, and always asked questions, questions that brought the body of science forward.
I don't mean to be overly controversial, but I mean that life is wonderful, reality is complex, and limiting questions only to what has been asked and answered before is limiting to natural human creativity and analyzing ability that would better the body of scientific work. It is exactly opposite to the heart of physics, which is all about understanding the nature of phenomena, enjoying it, exploring it, and getting interested in it. Without asking questions, one is looking at everything in the wrong way.
I am deeply hurt by the implications and perhaps my emotionalism is bringing me to a place where I do not see the rule clearly. I worry about this limitation of these types of interesting questions. Peer review sounds good. Perhaps it is not.
The link I am referring to is here: Is non-mainstream physics appropriate for this site?
Edit: as I read this my mind thinks "Abuse, abuse, abuse." The reason we probably do not allow such an exchange is abuse by poor practitioners. Nonetheless, the nature of the post seems to stand. We must worry about taking steps to bring physics forward over time, not leaving it as it is. That wouldn't be fun.