In a cave not far from where thousands of Israelis work in hi-tech companies in the Afek Industrial Zone, their Paleolithic ancestors were engaged in some of their own cutting-edge innovation and manufacturing. Indeed, the people who produced the thousands of knives and other tools in Qassem Cave between 200,000 and 400,000 years ago may have been the world's first industrial workers, says Ran Barkai, who with two other Tel Aviv University archeologists, Ron Shimelmitz and Avi Gopher, has been excavating the site. Their findings, based on the examination of more than 19,000 stone implements produced and used by the...