This is from 2016, but I just found it. It’s an article at Futurism about a Sony patent for a contact lens than can record video. Think Google Glass, but imperceptible to strangers. Unless the stranger is a Terminator. I don’t recall seeing anything about this since, and, of course, a patent is always easier than profitable mass production. But it does suggest enormous possibilities. I’ll keep an eye on this technology.
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