I was thinking about how a person would be able to spend 90 years in a dream (I forget who it was), and I have come to a conclusion of how such a thing would be done. So how could 90 years fit into a couple of hours? Relativity. Your brain has enormous power to generate thoughts at remarkable speeds. So when you are experiencing those thoughts one by one, it would appear to take a very long time to go through wouldn't it? Next time I have a lucid dream, I'm going to try and use this logic to prolong a dream (It doesn't matter if it doesn't work like that, remember the placebo effect?) Any thoughts on this?