Facebook’s F8 conference saw the social media titan unveil a prototype brain interface for interacting with its web platform – a glimpse at a potential future in which thumbs are no longer the primary way of controlling a mobile device. It comes in the wake of a livestreamed murder, and Facebook is hoping that new machine-learning (ML) techniques will help if avoid such incidents in the future. The company has also open-sourced its Caffe2 deep-learning software, and has been working with Nvidia to better integrate the framework with Nvidia’s GPUs via hardware acceleration – although Amazon, Intel, Microsoft, and Qualcomm have also announced support and optimization. Qualcomm’s immense mobile footprint is a juicy target for Facebook, and its Neural Processing…