What is a dream? Play it in our brain-designed for a working day thoughts, both conscious and subconscious. Sleep - a kind of thinking is all that concerns us for the day. But it happens sometimes that a person thinks about something, and his sleep is associated with the object of reflection. Therefore we can say that the dream manage our thoughts and emotions.
Nowadays even practice lucid dreaming, where one acts as if not asleep, and lives in a world that has built in his head, interact with other people, objects, perhaps even acquire abilities that do not possess. But is it possible in this case playback sleep like recording a movie?
At this stage of technological development - no, it's the same thing that read a person's thoughts, to visit his brain. But in the future, you can record a dream man in coded form, for a dream - it signals to the brain as a heartbeat. Let's hope that the technology will step so far that people will be able to decipher these signals and one day will record the human dream as a film. After all, in a dream, especially in the conscious, you can do anything, and has no graphics need not be. Therefore, we should believe that the reproduction of sleep will be real and accessible thing, and not just another fantasy of mankind.
In the meantime, we can only make for accomplishing all their forces, namely, to try to remember dreams, act in them, manage them. After all, one technique does not go far - we need action and psychological man. Each of us can help science, even accidentally. Do not rely on what will soon learn to play the dream, it is worth to make some effort for this and play it at least in his own mind.