Repeat: Recent years have seen a sharp increase in attempts by social media platforms like Google or Facebook to exercise control over what their users are allowed to post or share online. Driving this phenomenon has been the widespread feeling that these companies are in some sense like publishers, and therefore responsible for what users do on their sites – a feeling that has intensified as these platforms have become more politicised and their content more controversial. But are social media sites really like publishers? Or are they more like neutral internet service providers that bear no responsibility for what their users do online? Jonathan speaks with Robert Moro of the Kempelen Institute of Intelligent Technologies, who specialises in AI and its use on social media, about these very questions. – What’s important in a good doctor is to know practically how to do whatever needs to be done for the patient. Knowing a lot of background theory is not so important. Right? Wrong, according to Professor Ivan Varga of Comenius University’s Faculty of Medicine in Bratislava, and winner of the 2020 ESET Outstanding Academic award. He believes that our future doctors – some of whom are now his students – would be lost in their practice without a strong theoretical knowledge of the functioning of a healthy human body. Jonathan caught up with him recently, to ask why.