The definition and properties of information may seem to be fundamental features of the world that are independent of how particles, fields and space-time behave. In fact, though, information is fundamentally physical and twentieth century physics has radically changed our understanding of its nature and properties. Einstein's relativity theories tell us that information cannot travel faster than the speed of light in vacuum.

Continents as we know them today emerged as a consequence of the mechanism of plate tectonics, which led to the fragmentation of a super-continent. One such fragment, the Antarctica, now is in the ocean at the South Pole, covered in thick ice-sheets that contrast with its long-past history where it was adorned by forests and inhabited by animals including dinosaurs. It was the natural processes that buried carbon dioxide that led to the glaciation of Antarctica. The burning of fossil fuels is now having an opposite effect, causing the depletion of the ice at a remarkable rate.

In 2018 Arthur Ashkin was awarded a half share of that year's Nobel Prize in Physics "for the optical tweezers and their application to biological systems". The work for which he was recognised had its origins more than thirty years before, and in the years since their invention, the uses of optical tweezers have grown far beyond biological systems, with numerous diverse applications across the chemical and physical sciences also.

Is there intelligent life elsewhere in the universe? If not, does that mean that we humans are utterly alone in creation? Recent technological developments make the discovery of life on other planets almost expected within the coming decades. But most of the inhabited planets we hope to discover may well be populated by no more than alien bacteria. Will that make us feel any less alone? What we really hope to find are aliens with whom we can communicate and hold a conversation.

North Korea is one of the most secluded societies in today's world. Its system of rule is often referred to as an enigma of modern politics. This essay asks what has caused this condition of extreme isolation, highlighting the relentless pursuit of a historically durable charismatic political power. The discussion will include Max Weber's thoughts on the place of charismatic power in modern politics.

Since the end of the Second World War, diverse aspects of International Relations (IR) - including foreign policy, global governance, negotiation studies, and political economy - have been guided by an understanding that if markets were kept open, and states and their peoples interconnected, both prosperity and peace would stand a far better chance. In contrast, isolation - or its translation into a national strategy, isolationism - is often treated as a profanity in both the study as well as the practice of IR. In my Darwin lecture, I offer a different perspective.