The survival of capitalism is also dependent on using technology to extract more from workers wherever possible. Companies are investing in technology that allows them to reduce their labor requirements through data-­driven scheduling, and the costs of such arrangements fall to workers to bear. The increasing adoption of this kind of technology is responsible in part for the rise in casualization of labor over the last several decades. Nearly 60 percent of American workers (around 80 million people) are paid by the hour, and nearly half of these are subject to just-­in-­time scheduling, with no certainty about hours or start times. When we are at work, we are watched more closely than ever. We carry devices connected to the cloud, for example, which monitor every task and the time it takes to perform. The much-­derided consumer version of Google Glass has been reincarnated as a workplace management tool, to better track every task assigned to a worker. Amazon is patenting a wristband to squeeze more out of its workers by guiding their movements so they can pack items more quickly. Employers are making the most of technology for the purposes of optimizing how they use and monitor labor.