Bridging the Gaps: A Portal for Curious Minds

Astronomy tells the story of humanity's journey from viewing the sky as a flat, two-dimensional dome to understanding it as a vast, dynamic, and ever-expanding three-dimensional universe. This enduring story has been told through countless books, brought to life in words, and crafted into both prose and poetry. But imagine a book that goes beyond simply telling the tale—a book that invites you to actively engage with it, exploring the depths of the universe as unveiled by the most advanced astronomical research and discoveries of our time. The book “Welcome to the Universe in 3D: A Visual Tour” invites you on a captivating journey through the observable universe, showcasing some of the most awe-inspiring sights in the cosmos—in stunning 3D. Featuring a dazzling collection of stereoscopic color images and with a special stereo viewer conveniently folded into the book's cover, you can experience your cosmic surroundings in a breathtaking new dimension. In this episode of Bridging the Gaps, I speak with Dr Neil deGrasse Tyson, one of the authors of this fascinating and truly one-of-a-kind book. Neil deGrasse Tyson is a renowned science communicator and the first Frederick P. Rose Director of the Hayden Planetarium at the American Museum of Natural History in New York City, where he is also a research associate in astrophysics. Tyson has received 27 honorary doctorates and the NASA Distinguished Public Service Medal. His legacy is further honored with asteroid “13123 Tyson” and a leaping frog species, "Indirani tysoni", named after him. We begin by discussing the inspiration behind a book with a built-in stereoscopic viewer and the science behind creating 3D images that come alive through the brain’s intricate processing. This leads to reflections on humanity’s discovery of the universe’s three-dimensional nature, aided by concepts like parallax. We explore some of the book’s stunning images, showcasing the cosmos in breathtaking depth, and address challenges in science communication amidst misinformation. The role of policymakers in promoting science as a societal benefit and the future of space exploration are also key topics. This has been a captivating and enlightening conversation, filled with moments of Neil deGrasse Tyson’s signature laughter. We conclude with his inspiring words: “Very happy to help you and others bridge whatever gaps need bridged.” Complement this discussion with ““The Joy of Science” with Professor Jim Al-Khalili” available at: https://www.bridgingthegaps.ie/2022/05/the-joy-of-science-with-professor-jim-al-khalili/ And then listen to ““A Traveller’s Guide to the Stars” with Physicist, Author and Nasa Technologist Les Johnson” available at: https://www.bridgingthegaps.ie/2023/03/a-travellers-guide-to-the-stars-with-physicist-author-and-nasa-technologist-les-johnson/

For a long time, the prevailing perspective on evolution has been that it follows a vertical pathway, where genetic information is passed down from one generation to the next in a linear fashion, resembling a "tree of life." This classical view suggests that species evolve through a process of divergence from common ancestors, resulting in a branching tree structure that traces the lineage of life over time. In his new book “The Network of Life” Professor David Mindell emphasises the need to update this understanding, and explains that evolution functions more like a distributed, decentralised network. In this framework, there are possibilities for horizontal evolution, where genetic material is shared across species in a more fluid and interconnected manner. The book looks at the forces behind horizontal evolution, such as interbreeding, genetic recombination, merging of species, horizontal gene transfer, and coevolution. The network view of evolution leads to a new symbiotic theory of health. It suggests that the future well-being of humans, other species, and our environment relies on how life evolves and adapts within this interconnected web. In this episode of Bridging the Gaps I speak with Professor David Mindell. Professor David Mindel is a senior researcher of Zoology at the University of California, Berkeley. He is a former professor of ecology and evolutionary biology at the University of Michigan, director of the University of Michigan Museum of Zoology, and Dean of Science at the California Academy of Sciences. We begin our discussion by revisiting the traditional concept of vertical evolution, where life is represented as a branching tree. We explore how this classical framework explains the development of species over time and then shift to discussing two core ideas in evolutionary theory: natural selection and genetic mutation. For much of history, evolution has been viewed primarily through the lens of vertical inheritance. One reason for this focus on vertical evolution is that early evolutionary studies, including Darwin's, were centred around natural selection, with limited knowledge about genetic mutations. Today, we know they are essential drivers of evolution. We examine how this early gap in understanding may have shaped the preference for the vertical model of evolution. Next, we delve into the concept of horizontal evolution, and discuss the point made in the book that “horizontal evolution has been happening since life began on Earth”. To set the stage, I ask him to outline what we currently know about the origins of life. We also discuss the intriguing role of viruses. We then dive into the key discoveries and discuss processes such as hybridization, species merging, and horizontal gene transfer that provide strong evidence for this interconnected view of life. We discuss various contributions of prominent scientists and pivotal studies that have reshaped our understanding of evolution. Finally, we explore the exciting possibilities that arise from this new understanding. By embracing the network view of evolution, we can enhance research on synthetic life, support assisted evolution to help species adapt to climate change, and revolutionise our approaches to biotechnology, medicine, and environmental sustainability. This has been an insightful and enriching conversation, shedding light on the profound impact of horizontal evolution on our world. Complement this discussion with ““Zero to Birth: How the Human Brain Is Built” with Professor William Harris” available at: https://www.bridgingthegaps.ie/2022/10/zero-to-birth-how-the-human-brain-is-built-with-professor-william-harris/ And then listen to ““The Exquisite Machine: The New Science of the Heart” with Professor Sian Harding” available at: https://www.bridgingthegaps.ie/2022/12/the-exquisite-machine-the-new-science-of-the-heart-with-sian-harding/

​​Hunger is far more than the immediate and tangible experience of not being able to find or buy food. While it is true that hunger is often depicted as the physical sensation of an empty stomach—a condition that can be temporarily alleviated by food—the issue runs much deeper. Hunger is more than the absence of food; it is a manifestation of deeper, societal and structural failings leading to individual and collective trauma. To genuinely combat hunger, we must engage with its underlying causes—economic inequality, systemic discrimination, and societal neglect—and strive to create a compassionate and just society where all people have the resources, respect, and opportunities they need to thrive. In her book "The Painful Truth about Hunger in America: Why We Must Unlearn Everything We Think We Know—and Start Again" professor Mariana Chilton presents a bold, transformative perspective on addressing hunger and poverty in the United States. The book emphasises that hunger in the United States is underpinned by profound societal and structural failures that perpetuate poverty and ensure that millions remain trapped in cycles of scarcity. In this episode of Bridging the Gaps I speak with professor Mariana Chilton. Although the book focuses on the issues of hunger and poverty in the United States, the human experiences and the underlying structural and social root causes it explores are often universal. The insights and key points raised in the book resonate with similar challenges faced in other societies and regions, making its research and findings valuable for broader learning and application. Mariana Chilton is a Professor of Health Management and Policy at Drexel University's Dornsife School of Public Health. She is the founder of the Center for Hunger-Free Communities, where she initiated impactful programs such as “Witnesses to Hunger”, aimed at amplifying women's voices in the national conversation on hunger and poverty, and the “Building Wealth and Health Network”, which focuses on fostering economic security and healing. Chilton has provided expert testimony on hunger solutions before both the US Senate and the House of Representatives. Our discussion delves into the intricate connections between hunger and trauma, revealing the emotional and psychological toll on individuals and communities. We examine the persistent nature of poverty and its link to generational trauma and explore the complex relationship between poverty, violence, and systemic inequalities. Professor Chilton provides thoughtful explanations supported by real-world examples and personal stories, many of which are detailed in her book. We touch upon the historical contexts as well. We also discuss challenges involved in conducting research on such sensitive topics, particularly when working with vulnerable populations. The discussion covers both ethical considerations and the logistical obstacles researchers face when collecting data and sharing findings in a manner that respects and empowers participants. Professor Chilton’s insights shed light on the importance of compassionate, inclusive approaches to research and advocacy that prioritise the voices of those most affected by these issues. Complement this discussion with ““From Pessimism to Promise: Lessons from the Global South on Designing Inclusive Tech” with Professor Payal Arora” available at: https://www.bridgingthegaps.ie/2024/10/from-pessimism-to-promise-lessons-from-the-global-south-on-designing-inclusive-tech-with-professor-payal-arora/ And then listen to “”A Passion for Ignorance” and for Denials and Negations with Professor Renata Salecl” available at: https://www.bridgingthegaps.ie/2020/10/a-passion-for-ignorance-and-for-denials-and-negations-with-professor-renata-salecl/

Can living scientifically empower us to navigate the complexities of today’s complex and unpredictable world? Can the joy of critical thinking and the effectiveness of the scientific method assist us in making better decisions? Can living a more rational life help us navigate modern life more confidently? In his new book “The Joy of Science” acclaimed physicist Jim Al-Khalili invites readers to engage with the world as scientists have been trained to do. He shows how the fundamental principles at the heart of scientific thinking, as well as the scientific process, are profoundly relevant to the perplexing times we live in and the tough choices we make. In this episode of Bridging the Gaps, I speak with professor Jim Al-Khalili and we thoroughly discuss very interesting and deeply intriguing ideas that he presents in this book. Professor Jim Al-Khalili is a theoretical physicist at the University of Surrey where he holds a Distinguished Chair in physics as well as a university chair in the public engagement in science. He is a prominent author, broadcaster and one of Britain’s best-known science communicators. I start our discussion with the question that how the discipline of science should be perceived. We acknowledge that there are many ways scientific work is carried out in many different disciplines. We discuss the issue of “relative truth” and how biases held by individuals impact their opinions and distort their view and lead them to their own version of truth. We explore how science deals with the issue of relative truth. We probe how the scientific method enables us to continue researching in the presence of uncertainty. We investigate the impact of misinformation and disinformation on the disciple and cause of science. We also touch upon how rational humans can become; can we think rationally only up to certain point. We discuss in detail how scientific information should be presented to policy makers that should enable and empower them to make better decisions and to make the right choices. Finally, I ask Professor Jim Al-Khalili to tell us about his research in the field of open quantum systems. This has been a fantastic discussion. Complement this with “Asking Better Questions for Creative Problem Solving, Innovation and Effective Leadership with Hal Gregersen” available at: https://www.bridgingthegaps.ie/2022/02/asking-better-questions-for-creative-problem-solving-innovation-and-effective-leadership-with-hal-gregersen/ And then listen to “On Public Communication of Science and Technology with Professor Bruce Lewenstein” available at: https://www.bridgingthegaps.ie/2022/02/on-public-communication-of-science-and-technology-with-professor-bruce-lewenstein/

Recent developments in the field of Artificial Intelligence are fascinating as well as terrifying; there are extravagant promises as well as frustrating setbacks; there is great progress in narrowly focused AI applications, and there is lack of progress in the field of Artificial General Intelligence. In this episode of Bridging the Gaps I speak with professor Melanie Mitchell and we discuss the history, recent successes, huge expectations and emerging fears and frustrations in the field of Artificial Intelligence. We discuss fascinating and intriguing research that professor Melanie Mitchell discusses in her book "Artificial Intelligence: A Guide for Thinking Humans". Melanie Mitchell is a professor of complexity at the Santa Fe Institute in New Mexico. Her research focuses on genetic algorithms, conceptual abstraction, analogy-making and visual recognition in Artificial Intelligence Systems. Professor Mitchell originated the Santa Fe Institute's Complexity Explorer project, an online learning resource for complex systems. We begin our discussion by reviewing the history of this fascinating field and by discussing initial claims and hype that emerged at the start. We then discuss the transition from rule-based AI systems to machine learning approaches. We look into the successes of AI in narrowly defined task-based systems; we discuss the anomalies that emerge when the data is mildly changed. We then discuss the future development in this field and the challenges involved in making any meaningful progress towards Artificial General Intelligence and creating common sense in AI systems. The challenge of creating common sense seems similar to the challenge of finding and understanding dark matter in the field of physics, we discuss this. We look into the profound disconnect between the continuing hype and the actual achievements in AI, what the field has accomplished and how much further it has to go. We also discuss the approach of conceptual abstraction and incorporating analogy-making in AI systems. This has been a fascinating discussion about this ambitious and thought-provoking field. Complement this discussion with Artificial Intelligence: Fascinating Opportunities and Emerging Challenges with Professor Bart Selman available at: https://www.bridgingthegaps.ie/2020/08/artificial-intelligence-with-bart-selman/ And then listen to “2062: The World That AI Made” with Professor Toby Walsh available at: https://www.bridgingthegaps.ie/2019/04/2062-the-world-that-ai-made-with-professor-toby-walsh/