Facebook fractures its secretive hardware division

Roughly a year and a half ago, Regina Dugan, a former director for the US government’s Defense Advanced Research Projects Agency, took the stage at Facebook’s F8 developer conference. There, she told the audience that Facebook was working on brain-computer interfaces that might one day let you type with your thoughts.It was a bold proclamation, and it helped at the time paint a picture of Facebook as a risk-taking, moonshot-hunting Silicon Valley juggernaut in the mold of Google and