The Accreditation Board for Engineering and Technology defines industrial engineering as: the profession in which a knowledge of the mathematical and natural sciences gained by study, experience and practice is applied with judgment to develop ways to utilize economically, the materials and forces of nature for the benefit of mankind concerned with the design, improvement and installation of integrated systems of people, materials, equipment and energy. What media users do with all those resources is another matter. Most theorists expect them to choose the media products they prefer. Those preferences might reflect user needs, moods, attitudes, or tastes, but their actions are rational” in the sense that they serve those psychological predispositions. Whether people use the growing abundance to consume a steady diet of their preferred genre, or to sample a diverse range of materials is an open question. Many observers, noting people’s penchant for selective exposure, fear the former, particularly as it applies to news (Hollander, 2008; Iyengar & Hahn, 2009; Ksiazek, Malthouse, & Webster, 2010; Prior, 2007; Stroud, 2008; Van den Bulck, 2006). In the extreme, selective exposure could produce highly focused audiences that have been variously characterized as enclaves” (Sunstein, 2007), gated communities” (Turow, 1997), and sphericules” (Gitlin, 1998). It is 20 years into democracy and the African majority remains massively impoverished and excluded from opportunities to flourish. South Africa is a deeply unequal society, and becoming more unequal in some respects. But after 20 years of democracy it is time to take stock of both the achievements and limitations of public-interest litigation. Productivity. An orbital welding system will drastically outperform manual welders, many times paying for the cost of the orbital equipment in a single job. Lighting controls are cost-effective , especially when one considers long-term life-cycle costs along with initial costs. Lighting controls can add approximately $0.50-$1.00 per square foot initially. Payback periods vary widely by project and are difficult, at best, to predict accurately. That does not take into account the savings from reduced energy use and HVAC reduction. Computer networking, especially email, has been available since the early 1970s. But, until the advent of mobile computing, a person had to log on to a computer in a fixed location in order to receive or send messages. At first this meant going to a computer center and using a terminal with a mainframe monolithic beast of a computer encased in a large air-conditioned room. Gradually, the size of computers has shrunk, and wireless communications have been developed, so that now we finally have true mobile computing. With mobile communications, messaging and access to information from the network is now anywhere, anytime. Mobile phones are usually always on when carried, so that an alert that a message has been received by a device requires no further procedures to be read than (at most) touching a couple of buttons. With voice-activated navigation, even that step is disappearing.