It's unlikely that something like that is sitting undiscovered somewhere out there? In my opinion you are really too much optimistic about the knowledge of humankind.<br>Actually it strikes me that you (Tom) have such an optimistic opinion about our knowledge, as you know so much things about so much diverse subjects.<br>What I mean is, as you study anything that we know, you'll encounter very soon numerous walls of uncertanty about that subject, there's so, so much that we don't know about every area of knowledge you can think of.<br>If you ask me I would say that anything you can think of has its "undiscovered" simple but fundamental principles that we still (and surely will never) know.<br><br>(I'm sorry for my poor english)