Social Networking While You Sleep.+iWinks
recently completed a successful Kickstarter campaign https://www.kickstarter.com/projects/iwinks/the-aurora-dream-enhancing-headband
to produce the Aurora headband, which is designed to aid lucid dreaming. Working in conjunction with your phone the Aurora processes EEG data to determine when you have entered REM sleep.
At this point it can provide auditory or visual cues, such as sounds or a gently flashing LED light that, if you notice in your dream, will make you aware that you are
in fact dreaming and so allow you to fully enjoy the unbounded freedom of a lucid dreaming experience.
During REM sleep your brain temporarily paralyses your body; so preventing your body from thrashing around in bed and acting out the motions you institute in your dream. Except for the eyes - you can still move your eyes and this is something most of us have seen when watching another sleep.
If the headband had a camera that could see how your eyes were moving, then during the lucid dream you would be able to communicate with others by moving your eyes in certain patterns that represented the different things you wished to communicate (think Morse code at its simplest). Sleep researchers have routinely done this in the past. The flashing LEDs that brought you into the lucid state might be co-opted in the same fashion to send messages to you while you slept in your lucid dream and so allow two-way communication.
So you might communicate with those in the room, those online say by posting a message on Google+, or even those who are also asleep and using the same device. That's a pretty astounding possibility: two sleeping people having a conversation. Even if it is limited by a single flashing optical channel. I think this is another sufficiently advanced technology that would seem like magic to those living not that long ago.
Personally, I don't think I've had a lucid dreaming experience since I was a child of perhaps 8 years. As such I'd be keen to give it a go just for the chance to explore this altered state of consciousness! The possibility of playing around with two-way communication with future versions would be a bonus.
What do you think? What else would you use it for and do you have lucid dreams anyway?
More on iWinks and Aurora here: https://iwinks.org/aurora/purchase
More on lucid dreaming here: http://en.wikipedia.org/wiki/Lucid_dream