Technology

by Nathan E. Sanders and Bruce Schneier

by Jean M. Twenge

by Eli Thompson

by Paul Greenberg

by Rick Bennett

by Noah Giansiracusa

by Belinda Luscombe

by TIME Staff

by Scott Nover

by Vinod Khosla

by Arianna Huffington

by Victoria Livingstone

by John Hope Bryant

by Tim Shriver

by Dan Hendrycks