Philips has not been available for years, and though there are many other EEG headbands, they are not focused on improving deep sleep. Though I agree, getting p

Philips has not been available for years, and though there are many other EEG headbands, they are not focused on improving deep sleep. Though I agree, getting people to wear a headband is a difficult problem to solve as well. iPhone was considered a future vision, but we had smartphones and even smartphones with apps previously, but at the bottom of the page, Sequoia points to the iPhone and Vision Pro as Future Vision examples.