I mean we convinced people that listening to music by sticking a speaker in their ear canals is healthy and safe. Why can't we do this for our eyes? The "Samsung Galaxy" moment will be when they start shipping disposable contact lenses with AR functionalities....but this requires a cross industry expertise and highly proprietary nanotech which Pentagon needs to fully test out before approving it for consumer usage, as with many of our major technological innovations owing to the military-defense complex.