Bulgarian engineers and cyberneticians, champions of this new technology, increasingly worried about what this meant. In the ivory towers of places such as the Institute of Technical Cybernetics and Robotics in Sofia, they wrote detailed papers on robotic movement, image recognition, planning algorithms. They ran experiments and built labs to test how to perfect Man-Machine Interfaces – from the design of the perfect office that would minimise an office worker’s eye-strain to the future melding of human and machine vision.