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How close are we to video-recording our dreams?  By Charlotte Hawks, CNN  April 5, 2018

Although most of us dream four to six times a night, we forget 90% of our dreams 10 minutes after they end. …………..Whatever dreams are, humans are fascinated by these worlds our brain creates. Many people keep dream journals, use dreams for guidance or try controlling them through lucid dreaming. And with technological advancements, many are captivated by the notion that we could one day record them. Scientists are working on the idea..

"We dream to forget," scientist Francis Crick wrote. But what if we didn't have to forget? What if you could revisit winning the lottery, meeting your favorite celebrity or flying above the Grand Canyon? Scientists around the world are working on technology to decipher the content, imagery, movement and speech of our dreams…………… Daniel Oldis, an independent dream researcher and author of "The Lucid Dream Manifesto," is working with David M. Schnyer at the University of Texas at Austin to record the movement and speech in our dreams. Schnyer runs the university's Cognitive Neuroscience Lab, which uses an electromyogram, or EMG, to measure nerve impulses to muscles while subjects sleep.

……. let’s assume these technical challenges are achieved; we can capture our dream, video and sound both, and replay it on a device.    We would have countless hours of video, something akin to watching a cloudcam display that we would desperately try to make sense of (just as we attempt to interpret the dream), because we wouldn’t be able to understand it all.  It would give us generations of data to process about our own thoughts; we could easily become obsessed, even addicted, to watching and dissecting our dreams.  Indeed, the 1985 Wim Wenders film Until the End of the World gave us just such a scenario, in which people became utterly addicted to watching their own dream replay.