Hitting the Books: What the wearables of tomorrow might look like

Apple's Watch Ultra, with its 2000-nit digital display and GPS capabilities, is a far cry from its Revolutionary War-era self-winding forebears. What sorts of wondrous body-mounted technologies might we see another hundred years hence? In his new book, The Skeptic's Guide to the Future, Dr. Steven Novella (with assists from his brothers, Bob and Jay Novella) examines the history of wearables and the technologies that enable them to extrapolate where further advances in flexible circuitry, wireless connectivity and thermoelectric power generation might lead. Excerpted from the book The Skeptics' Guide to the Future: What Yesterday's Science and Science Fiction Tell Us About the World of Tomorrow by Dr. Steven Novella, with Bob Novella and Jay Novella. As the name implies, wearable technology is simply technology designed to be worn, so it will advance as technology in general advances.