A team of researchers has achieved the fastest ever transmission rate for digital information between a single transmitter and receiver, sending data optically at a frankly ridiculous 1.125 terabits per second. The result, achieved by scientists at University College London, uses a series of signal processing techniques to achieve the speed. http://gizmodo.com/researchers-achieve-fastest-ever-data-transmission-at-b-1758452054 Full study: http://www.nature.com/articles/srep21278 While it's really impressive, it still might need one thing: latency.
