CNet (01/19/16) Marguerite Reardon Many industry leaders think the world is entering a time of momentous changes involving software, according to a World Economic Forum survey. The expected changes include technology related to artificial intelligence, Internet-connected devices, three-dimensional (3D) printing, and phones implanted in users' heads. "Computers and other digital advances are doing for mental power--the ability to use our brains to understand and shape our environments--what the steam engine and its descendants did for muscle power," says Erik Brynjolfsson, director of the Massachusetts Institute of Technology's Initiative on the Digital Economy. For example, experts say embeddable devices implanted in the body that use wireless technology could be commercially available by 2023. Although there are likely to be many benefits to such technology, there also are concerns about privacy, government surveillance, and revolutionizing communication. Survey res