This thread is being started to avoid having https://www.physicsforums.com/showthread.php?t=124037" bunked down here to the realms of philosophy. We'd hit a few assumption walls, too many. I'm the OP of the parent thread, and I'm repliing to JesseM whose raised some fine point about why I think I should be calling a region cut off from all 'external' information, a universe. Even if the greater region that previously contained that region 'still' exists. I'll be quoting from JesseM's https://www.physicsforums.com/showpost.php?p=1023156&postcount=139" This is true. I think it is. I was trying to justify this in my previous 'philosophical' posts. I'll start again: If no information can pass into the new contained region, then how can it be effected by that which is exterier. In all meaningful ways, there is no exterior. No information, no cause, no effect. No exterior. Therefore, the 'interior' is all that is (in all meaningful ways). If the exterior where to have some other gargantuan event occur in it, how could this effect the interior? When would it, if the timeline is no longer intact? If you're asking the more 'physicsy' question, why is the time line severed then we need to descuss that on the other thread? But if you accept that no information can pass through the sigular surface, as it will be anahhilated by the infinite properties found there, time is holted, space destroyed, etc... Then the information that is contained within, is all that should be concidered for that region. You will have essencially created a new Laplacian Demon. A little one that fits perfectly in the new island of reality. You (or I) have had a little confusion over what my assertion was re this: You say: but previously in the same post you quote: I AM saying that its a new universe. I'm NOT saying that if HE can't see it, its not real. But if his universe (or if you prefer, region) can not observe something, then it can not effect him. Do you believe in the Demon? Do you think it will be cut in two by the singular surface? Without infomation there is no knowledge. The new lesser demon is still omniscient of all event that can occur, within his new realm. I'll stop there for response.