If the awaking world was dream and everyone has then same limitation as everyone else then we would be a dream of someone who has dreamt us. Now that is most likely not true. Because we can think inside or own heads. Have you had a dream were you are more then one person; and could think inside all your heads? Then not know what the other you was thinking. And the you you knew what the other yous were thinking. If yes then I could see this as a dream.