The Importance of Imagination

If you can imagine a thing that doesn't make it real, that's where that possibility exists in your imagination. A thing is possible if it doesn't contradict the laws of physics, and it happens somewhere. But whether something happens a lot in the multiverse or not may well come down to whether it depends upon knowledge creation. If that knowledge is created in one part of the multiverse, then it has causal effects on the structure of the multiverses. Where it does not get created, nothing quite so dramatic happens in that part of the universe - because it never happened to cause anything dramatic to happen.