Many of us spend hours with our smartphones and computers, texting and emailing. We peruse social networking sites, updating our followers several times a day on our moods and thoughts. In many ways, it seems we have greater safeguards against loneliness than we ever have. But Professor Sherry Turkle wonders if, in the age of digital saturation, we’ve sacrificed conversation for mere connection. Sherry Turkle is an MIT technology and society specialist, as well as the author of “Alone Together: Why We Expect More of Technology and Less of Each Other.”