A tech startup called Prophetic aims to bring lucid dreams to a wider audience by developing a wearable device called the Halo. 

The company uses technologies like ultrasound and machine learning models to detect when dreamers are in REM and induce and stabilize lucid dreams. 

Lucid dreams can have various benefits including helping with PTSD, reducing anxiety, and improving mood, confidence, motor skills, and creativity. 

Prophetic has partnered with the Donders Institute to generate a large dataset of EEG and fMRI observations of lucid dreamers and explore the use of transcranial focused ultrasound (TUS) in inducing lucid dreams. 

The company is working on a wearable headband prototype, the Halo, which can currently read EEG data of users and aims to train machine learning models to stimulate targeted neural activity in users with ultrasound transducers to induce lucid dreams. 

There is ongoing research to determine if TUS can induce or stabilize lucid dreams, and the team is optimistic about the prospects. 

Safety and privacy concerns are being addressed in Prophetic's technology roadmap, and the company hopes that the Halo could contribute to a better understanding of dreams and consciousness. 

The team believes in the potential of their approach, drawing on successful studies showing that stimulation during REM sleep can induce self-reflective awareness in dreams. 

The company is mindful of safety and privacy concerns and aims to address these concerns in their technology roadmap, understanding the importance of mental well-being in dream modulation. 

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