
Bridging the Gaps: A Portal for Curious Minds
In-depth conversations with researchers, explorers and thought leaders from around the world, on cutting edge research and original ideas.
Latest episodes

Oct 26, 2020 • 42min
"A Passion for Ignorance" and for Denials and Negations with Professor Renata Salecl
Ignorance, denials and negations have always been part of human experience. In this post-truth, post-industrial world, we often feel overwhelmed by the information and misinformation overload. Although we claim to live in an information age, consciously or unconsciously, actively or passively more and more we are choosing to ignore, deny and negate facts and valid opinions. In this episode of Bridging the Gaps, I speak with philosopher and sociologist Professor Renata Salecl and we this discuss this “passion for ignorance”. In her recent book “A Passion for Ignorance: What We Choose Not to Know and Why” Renata Salecl explores how the passion for ignorance plays out in many different aspects of life today.
Renata Salecl is professor at the School of Law at Birkbeck College, University of London and senior researcher at the Institute of Criminology at the Faculty of Law in Ljubljana, Slovenia.
I open our discussion by asking Professor Salecl to unpack and explain various faces of ignorance that she outlines at the start of the book. We discuss the transformation of the knowledge economy to ignorance economy as she reports in the book. This book is organised very well; most chapters in the book start by outlining some kind of ignorance, this could be an active or passive ignorance, conscious or unconscious ignorance, and then Salecl discusses underlying reasons and possible impact of these denials and negations. In this discussion we touch upon a variety of denials and negations and forms of ignorance. We start with an important form of negation which is “choosing to ignore scientific evidence”. We also discuss the emergence of new forms of denials and ignorance in this age of Big Data. Drawing on philosophy, social and psychoanalytic theory, popular culture, and her own experience, Salecl explains that ignorance is a complex phenomenon that can, on occasion, benefit individuals and society as a whole.
For more in-depth discussions with researchers and thought leaders, reach us at:
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Complement this discussion with Professor Justin Smith’s fascinating views on Irrationality available at: https://www.bridgingthegaps.ie/2019/06/irrationality-a-history-of-the-dark-side-of-reason-with-professor-justin-smith/
And then listen to Professor Luciano Floridi’s thoughts on Philosophy and Ethics of Information at:
https://www.bridgingthegaps.ie/2020/07/philosophy-of-information-and-ethics-of-information-with-professor-luciano-floridi/

Oct 12, 2020 • 1h 1min
Intriguing Science of Sense of Smell with Professor Matthew Cobb
Sense of smell is the process of creating the perception of smell. Animals use smell for a range of essential functions such as to find food or a mate, to sense danger and to send and receive signals and complex messages with other members of a species. Despite being so fundamental for all animals, including us, the sense of smell remains mysterious. We understand far less about this sense than we know about other senses. In this episode of Bridging the Gaps I speak with Professor Matthew Cobb and we explore this fascinating topic. In his recent book “Smell: Very Short Introduction”, Matthew Cobb describes the latest scientific research on sense of smell in humans, other mammals and in insects.
Matthew Cobb is a professor in the School of Biological Sciences at the University of Manchester, where he studies sense of smell - or olfaction as it is technically known; he also studies insect behaviour, and the history of science.
I open the discussion by posing the question that why did sense of smell emerge and evolve so early in the history of species. The sense of smell is a fundamental sense for animals, and is perhaps the oldest of all other senses, but we know far less about this sense than what we know about vision, touch, taste or hearing. We discuss our lack of understanding of the sense of smell and the reasons why olfaction is so complex to study and understand as compared to the other senses. We then discuss in detail what exactly is “smell” and talk about the composition and structure of smell carrying molecules. We touch upon smell detection and perception mechanisms and relevant functions of the brain. Animals use their sense of smell to interact with other animals and to interact with the environment they live in, to convey and to receive various messages; it seems that all life forms on earth live in an ecosystem of smells. Matthew Cobb explains this ecology of smells. We discuss the role of smell and scents in human culture. This has been an informative, enlightening and educative discussion.
For more in-depth discussions with researchers and thought leaders, reach us at:
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Sep 20, 2020 • 57min
"Exploring the Mysteries of Our Universe's First Seconds" with Dr Dan Hooper
Scientists now have a good understanding of how our universe evolved over the past 13.8 billion years, but we know very little about what happened in the first few seconds after the Big Bang. Dr Dan Hooper, a senior scientist at Fermi National Accelerator Lab and a professor of astronomy and astrophysics at the University of Chicago, emphasises that understanding the earliest moments of the universe is vital to tackle, and to decipher mysteries such as dark matter and dark energy. In his book “At the Edge of Time: Exploring the Mysteries of Our Universe’s First Seconds” Hooper outlines four foundational questions as puzzles that we must solve and the key to solving these puzzles is in understanding what happened at the very beginning of our universe.
In this episode of Bridging the Gaps I speak with Dr Dan Hooper. We discuss intriguing questions and fascinating research that he presents in the book “At the Edge of Time: Exploring the Mysteries of Our Universe’s First Seconds”. At the start of the book Hooper gives a thorough description of the timeline of how we got here where we are now from the Big Bang to the present day and how did our universe evolve over the past 13.8 billion years; he presents this narrative backwards, from the present time to the Big Bang. I open our conversation by asking him to describe this timeline and this journey from the present day to the Big Bang. We then discuss the four puzzles that Hooper outlines in the book and examine that understanding what happened in the first few seconds after the Big Bang holds the key to solving these puzzles. We also discuss the progress that is being made in developing a theory of everything, gravitational waves and his views on the multi universe theory. This has been a fascinating discussion with a very passionate researcher.
For more in-depth discussions with researchers and thought leaders, reach us at:
https://www.bridgingthegaps.ie/
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Compliment Professor Hooper’s insights with equally fascinating discussion with Dr Katie Mack “The End of Everything (Astrophysically Speaking)” [https://www.bridgingthegaps.ie/2020/08/the-end-of-everything-astrophysically-speaking-with-dr-katie-mack/], and then listen to discussion with Nasa’s Spitzer project scientist Michael Werner “Spitzer Space Telescope: Discovering “More Things in the Heavens” [https://www.bridgingthegaps.ie/2019/07/spitzer-space-telescope-discovering-more-things-in-the-heavens-with-nasas-spitzer-project-scientist-michael-werner/].

Aug 27, 2020 • 53min
"The End of Everything (Astrophysically Speaking)" with Dr Katie Mack
Throughout history philosophers, poets and explorers have been pondering upon and debating the question that what the long term future of our universe would be. The focus has been on two intriguing perspectives: would the universe continue to exist forever or would it end at some point in time in future. Modern scientists seem to be in agreement that in the distant future the world will end; our universe will die. At that time, humanity might still exist in many unrecognizable spinoff forms, venturing out to distant space, finding new homes and building new civilizations. But the death of the universe if final. It is hard to contemplate that a time will come when, all that we care about, all that we have imagined and built, that all will end. It is equally hard to address the question that how our universe will end. In her latest book “The End of Everything (Astrophysically Speaking)”, Dr Katherine (Katie) Mack outlines five different ways the universe could end, and discusses in detail the mind-blowing lessons each scenario reveals about the most important concepts in physics. In this episode of Bridging the Gaps, I speak with Dr Katie Mack about her research and about these possible endings of our universe.
Dr Katherine (Katie) Mack is a theoretical astrophysicist who studies a range of questions in cosmology, the study of the universe from beginning to end. She currently holds the position of Assistant Professor of Physics at North Carolina State University, where she is also a member of the Leadership in Public Science Cluster. Throughout her career she has studied dark matter, the early universe, galaxy formation, black holes, cosmic strings, and the ultimate fate of the cosmos. Alongside her academic research, she is an active science communicator and has been published in a number of popular publications such as Scientific American, The New York Times, Slate, Sky & Telescope, and Cosmos Magazine, where she is a columnist.
We start our conversation by discussing with Dr Katie Mack the beginning of the universe; we then discuss nature and the large scale structure of the observable universe. We discuss cutting-edge research on two important unknowns that we are faced with: Dark Matter and Dark Energy. In the book Dr Katie Mack outlines a number of ways in which this universe could end. We discuss in detail two of these possibilities. Finally we discuss the models and theories that we presently use to study the cosmos and how might a “theory of everything” enhance our ability to understand the true nature of reality. This has been a fascinating discussion with one of the most dynamic rising stars in astrophysics.
For more in-depth discussions with researchers and thought leaders, reach us at:
https://www.bridgingthegaps.ie/
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Aug 14, 2020 • 53min
Artificial Intelligence: Fascinating Opportunities & Emerging Challenges with Professor Bart Selman
Research and development in the field of Artificial Intelligence is progressing at an amazing pace. These developments are moving beyond simple applications such as machine vision, autonomous vehicles, natural language processing and medical diagnosis. Future AI systems will be able to use reasoning to make decisions; will employ innovative models of non-human intelligence; will augment human intelligence through human centric AI Systems. These systems will enable us to discover solutions to scientific and social problems, and will enable us to understand the physical world around us that has never been possible up-to this point in time. In this episode of Bridging the Gaps, I speak with Professor Bart Selman to discuss these fascinating opportunities as well as emerging challenges in the field of Artificial Intelligence.
Bart Selman is a Professor of Computer Science at Cornell University. He is a Fellow of the American Association for Artificial Intelligence and a Fellow of the American Association for the Advancement of Science. Professor Bart Selman is the president-elect of The Association for the Advancement of Artificial Intelligence. We begin our conversation by going through some of the recent developments in the field of Artificial Intelligence and how far we are from achieving the goal of developing Artificial General Intelligence.
We discuss in detail artificial reasoning, non-human intelligence and human centric AI. We also discuss state of the art research on the topic of explainable AI. We then discuss challenges posed by applying research in the field of AI to develop systems such as autonomous weapons, weaponized AI and other similar and sensitive domains. This has been a fascinating discussion about cutting edge research in the field of Artificial Intelligence.
For more in-depth discussions with researchers and thought leaders, reach us at:
https://www.bridgingthegaps.ie/
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Jul 5, 2020 • 1h 3min
"Philosophy of Information" and "Ethics of Information" with Professor Luciano Floridi
Information is a crucial concept. Its significance is evident by the fact that the present era is labelled as the information age. An intriguing question is: What is information? Although information is always around us, in the realm of digital artefacts and connectivity as well as in biological entities and processes, it is still an elusive concept. This is perhaps the hardest and most central problem that is the focus of a new area of research known as philosophy of information. This episode of Bridging the Gaps focuses on philosophy of information, and touches upon a number of relevant concepts. I speak with professor Luciano Floridi who explains what is philosophy of information, why it matters, and systematically unpacks and thoroughly explains a number of fascinating and relevant concepts for our listeners.
Professor Luciano Floridi is a Professor of Philosophy and Ethics of Information at the University of Oxford. He is also the Director of the Digital Ethics Lab of the Oxford Internet Institute. He is Faculty Fellow of the Alan Turing Institute and Chair of its Data Ethics Group. He is an Adjunct Professor of the Department of Economics, American University, Washington D.C. His research interests include the philosophy of Information, information and computer ethics, and the philosophy of technology. His other research interests include Epistemology, Philosophy of Logic, and the History and Philosophy of Scepticism.
In a recent presentation professor Luciano Floridi describes philosophy of information as a “philosophy of our time”, and a “philosophy for our time”. I start our conversation by asking professor Floridi to unpack this definition for our listeners and explain this description of the philosophy of information. An interesting point that we discuss is how did ancient philosophers deal with the concept of information and do we find any philosophical discourse about information in ancient times? We then move onto concepts such as conceptual nature of information, data grounding problem and meaning and truth. We discuss in detail the concept of “Level of Abstraction”.
Professor Floridi discusses an interesting concept in his publications, that is the concept of “Informational Structural Realism” and he makes an important observation that a significant consequence of Informational Structural Realism is that the ultimate nature of reality is informational. This is an intriguing statement. Professor Floridi explains this statement and expands on what he means by “the ultimate nature of reality is informational”. We then move on and discuss in detail, immensely important concept of ethics of information. I then invite professor Floridi to share with our listeners details of the research projects that he has been working on recently.
Before closing our discussion we discuss three very interesting points: describing philosophy as a mechanism to design and engineer concepts; researching open questions; and tackling the view held by some that philosophy is dead. This has been a thoroughly informative, hugely educative and immensely interesting conversation.
For more in-depth discussions with researchers and thought leaders, reach us at:
https://www.bridgingthegaps.ie/
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Jun 2, 2020 • 1h 5min
"The Evolution of Knowledge: Rethinking Science for The Anthropocene" with Professor Jürgen Renn
Most history of science publications narrowly focus on specific periods in human history, or particular disciplines of scientific discovery, or small sets of scientists and philosophers. However there is a view that history of science can be better understood against the background of a history of knowledge including not only theoretical but also intuitive and practical knowledge. This can be further broadened by including cognitive, material and social dimensions of knowledge. Studying how knowledge structures are formed and evolve as knowledge spreads should further enrich our understanding of development and progress of science and technology. In his new book “ The Evolution of Knowledge: Rethinking Science for the Anthropocene” Jürgen Renn presents a new way of thinking about the history of science and technology, one that offers a grand narrative of human history in which knowledge serves as a critical factor of cultural evolution.
Jürgen Renn is a director at the Max Planck Institute for the History of Science in Berlin, where, together with his group, he researches structural changes in systems of knowledge. Jürgen Renn is honorary professor for History of Science at both the Humboldt-Universität and the Freie Universität Berlin. He is currently serving as Chairperson of the Humanities Sciences Section of the Max Planck Society.
In this book Jürgen Renn examines the role of knowledge in global transformations going back to the dawn of civilization while providing vital perspectives on the complex challenges confronting us today in the Anthropocene—this new geological epoch shaped by humankind. He reframes the history of science and technology within a much broader history of knowledge, analyzing key episodes such as the evolution of writing, the emergence of science in the ancient world, the Scientific Revolution of early modernity, the globalization of knowledge, industrialization, and the profound transformations wrought by modern science. He investigates the evolution of knowledge using an array of disciplines and methods, from cognitive science and experimental psychology to earth science and evolutionary biology. The result is an entirely new framework for understanding structural changes in systems of knowledge—and a bold new approach to the history and philosophy of science.
In this episode of Bridging the Gaps, I speak with professor Jürgen Renn, one of today’s preeminent historians of science. We discuss fascinating research that he presents in The Evolution of Knowledge. We discuss the origin, evolution and spread of knowledge, and other insights that Jürgen Renn discuss in this thorough book.
For more in-depth discussions with researchers and thought leaders, reach us at:
https://www.bridgingthegaps.ie/
https://soundcloud.com/bridging-the-gaps

Mar 11, 2020 • 44min
"Dark Data: Why What You Don't Know Matters" with Professor David Hand
In the era of big data and super-fast information capturing and processing systems, it is easy to imagine that we have all the information that lead to actionable insights, that we need to make good decisions. However, according to David Hand, Emeritus Professor of Mathematics and Senior Research Investigator at Imperial College London, the data we have are never complete. Just as much of the universe is composed of dark matter, invisible to us but nonetheless present, the universe of information is full of dark data that we overlook at our peril. In his new book “Dark Data: Why What You Don’t Know Matters” Professor David Hand takes us on a fascinating and enlightening journey into the world of the data we don't see.
As in his book “Brief Answers to the Big Questions” Stephen Hawking notes “No matter how powerful a computer you have, if you put lousy data in you will get lousy predictions out”, it is essential to understand anomalies and imperfections that a dataset may have. These imperfections may lead to incorrect and misleading insights.
The book “Dark Data: Why What You Don’t Know Matters” explores the many ways in which we can be blind to missing data and how that can lead us to conclusions and actions that are mistaken, dangerous, or even disastrous. Full of real-life examples, from the Challenger shuttle explosion to complex financial frauds, the book outlines a practical taxonomy of the types of dark data that exist and the situations in which they can arise, and informs the readers how to recognize and control dark data. Professor David Hand guides us not only to be alert to the problems presented by the things we don’t know, but also shows how dark data can be used to our advantage, leading to greater understanding and better decisions. Data is essential for decision making; the books shows us all how to reduce the risk of making bad decisions.
For more in-depth discussions with researchers and thought leaders, reach us at:
https://www.bridgingthegaps.ie/
https://soundcloud.com/bridging-the-gaps

Mar 2, 2020 • 56min
Origin Of Mathematics and Mathematical Thinking with Dr Keith Devlin
Mathematics is everywhere. We use numbers, quantities, values and measurements almost all the time. Counting and quantifying is part of almost everything that we do.
An interesting question is how did it all start. When did humans start thinking mathematically and what is the origin of mathematical thinking. As we start tacking these questions, we stumble upon few more queries: how did our brain evolve to do mathematics; what are fundamental capacities that enable humans to do mathematical thinking; what are major milestones in the evolution of mathematical thinking and in the history of mathematical innovations; is mathematics discovered or is it invented. I invited Dr Keith Devlin to join me in this episode of Bridging the Gaps for a discussion that focuses on these questions.
Dr Keith Devlin is the director of the Stanford Mathematics outreach project at Stanford University. His current research is focused on the use of different media to teach and communicate mathematics to diverse audiences. He has written 33 books and over 80 research articles. He is a World Economic Forum Fellow, a Fellow of the American Association for the Advancement of Science, and a Fellow of the American Mathematical Society.
For more in-depth discussions with researchers and thought leaders, reach us at:
https://www.bridgingthegaps.ie/
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Dec 4, 2019 • 40min
Timefulness: Thinking Like a Geologist with Professor Marcia Bjornerud
Our planet’s history, from its initial formation to present day, spans over a long period of time. It is not easy to conceptually imagine such a large timescale and most of us adopt a narrow perspective of temporal proportion. This constricted view, according to professor Marcia Bjornerud underlies many of the environmental problems we are creating for ourselves. The lifespan of Earth can seem unfathomable compared to the brevity of human existence, but a narrow view of time makes it difficult for us to understand our roots in Earth’s history and the magnitude of our impact on the planet. Bjornerud, in her recent book “Timefulness: How Thinking Life a Geologist Can Help Save the World” stresses that an awareness of Earth’s temporal rhythms is critical to our planetary survival. I speak with Professor Marcia Bjornerud in this episode of Bridging the Gaps and we discuss fascinating research and intriguing ideas that she presents in this book. We explore in detail, one of the main points presented in this book, which is “how knowing the rhythms of Earth’s deep past and conceiving of time as a geologist does can give us the perspective we need for a more sustainable future”. Bjornerud emphasizes that overlapping rates of change in the Earth system -- some fast some slow-- require a poly-temporal worldview that she calls “timefulness”.
Marcia Bjornerud is professor of geology and environmental studies at Lawrence University. She is the author of Reading the Rocks: The Autobiography of the Earth and a contributing writer for Elements, the New Yorker's science and technology blog.
“Timefulness: How Thinking Like a Geologist Can Help Save the World” presents a new way of thinking about our place in time, enabling us to make decisions on multigenerational timescales. “Timefulness reveals how knowing the rhythms of Earth’s deep past and conceiving of time as a geologist does can give us the perspective we need for a more sustainable future. Featuring illustrations by Haley Hagerman, this compelling book offers a new way of thinking about our place in time, showing how our everyday lives are shaped by processes that vastly predate us, and how our actions today will in turn have consequences that will outlast us by generations”.
For more in-depth discussions with researchers and thought leaders, reach us at:
https://www.bridgingthegaps.ie/
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