Originally Posted by
Puffin
It's impossible to stretch time out so long that you lose track of what's real and what's not. And besides, you can always do a reality check to make sure you're not dreaming. In Inception, they didn't use reality checks and lots of the "dream information" in the movie wasn't true for real life.
Once you realize you're dreaming, you can do anything! Dreams, from my experience (and that of others, I'm sure) run mainly on expectations. If you expect to suddenly feel someone touch your shoulder, or see someone turn around the corner, they probably will. "Know" that you'll be able to fly, and you will. Expect a table to be behind you when you turn around, or expect the door you're about to open to lead to a rainforest. Anything's possible.