Don't you people read the classics? Neal Stephenson seems to write books 10 years ahead of time that predict all technologies (crypto, metaverse, etc). "Reamde

Don't you people read the classics? Neal Stephenson seems to write books 10 years ahead of time that predict all technologies (crypto, metaverse, etc). "Reamde" has multiple cool ideas (the miasma, basically our dystopian internet information sphere we live in today), but one of them is people walking down the street with glasses that have some kind of light device that shines on your face to confuse facial recognition.