Bridging the Gaps: A Portal for Curious Minds

The ancient ambition of exploring the cosmos and possibly even inhabiting other planets may one day come true, as we discover more and more exoplanets and intend to develop innovative propulsion techniques suitable for interstellar travel. Projects like 100 Year Starship and Breakthrough Starshot enable us to study the challenges involved with a view to develop solutions, furthering the idea of interstellar travel. In his new book “A Traveller’s Guide to the Stars” physicist and Nasa Technologist Les Johnson takes the readers on an exciting journey through the science and innovations that could help us get to the stars.The book gives a thorough account of the next great frontier of human exploration, outlining exclusive inside look at the amazing advances in science and technology that will aid today's astronauts in setting out for the stars. Les Johnson is a physicist, author, and NASA technologist. He leads the development of advanced, in-space spacecraft propulsion technologies at the NASA George C. Marshall Space Flight Center in Huntsville, Alabama. During his career at NASA, Les served as the Manager for the Space Science Programs and Projects Office, the In-Space Propulsion Technology Project, and the Interstellar Propulsion Research Project. We begin by reviewing the impact of discovery of exoplanets on the ambition of travelling to and inhibiting these distant alien worlds. Next we look at the precursors that we must take into consideration before building the ships and embarking on interstellar journeys. We discuss in detail the presently used propulsion technologies and evaluate their shortcomings for interstellar journeys. While discussing the future, we first discuss in detail two rocket technologies of the future: nuclear fusion and antimatter. Then we discuss in detail the innovative and promising propulsion approaches such as solar sails and laser-beamed energy. We discuss in detail how these technologies may one day enable us to embark on interstellar journeys. Les Johnson has written a number of science fiction books; I ask him to expand on his view that science fiction is an effective tool to imagine future technologies. No discussion on the topic of space exploration is complete without discussing the possibility of life out there; we discuss this as I ask Les to give us his views on the possibility of life out there and on the question “are we alone”. This has been a fantastic discussion. Complement this discussion with ““The Next 500 Years: Engineering Life to Reach New Worlds” with Professor Christopher Mason” available at: https://www.bridgingthegaps.ie/2022/05/the-next-500-years-engineering-life-to-reach-new-worlds-with-professor-christopher-mason/ And then listen to ““The End of Astronauts”, Robotic Space Exploration and Our Future on Earth and Beyond with Professor Martin Rees” available at: https://www.bridgingthegaps.ie/2022/03/the-end-of-astronauts-robotic-space-exploration-and-our-future-on-earth-and-beyond-with-professor-martin-rees/

Looking for the earliest galaxies is like travelling back in time. Something that astronomers do all the time. Astronomers use huge and powerful telescopes to see not only farther and deeper into space, but also back in time. The hunt for the oldest galaxies using observational astronomy needs not only a thorough grasp of the physics and chemistry of the early cosmos, but also the human ingenuity of building large size telescopes and designing innovative instrumentation. Large and complicated telescopes, as well as supporting processes, techniques, and devices, allow astronomers to make more clear and accurate observations in their search for the first galaxies. In his new book “When Galaxies Were Born: The Quest for Cosmic Dawn” professor Richard Ellis presents a firsthand narrative of how a pioneering group of scientists used the world's greatest telescopes to unravel the history of the universe and witness cosmic dawn, when starlight first illuminated the cosmos and galaxies formed from darkness. The book also gives a narrative of a golden age of astronomy, outlining many achievements and disappointments, and discussing rivalries with competing teams. This is also an account of professor Elis’s remarkable career spanning more than forty years. In this episode of Bridging the Gaps I speak with professor Richard Ellis. We discuss amazing progres that astronomers have made in building ever larger and more powerful telescopes; we also dig deep on the fascinating research on the birth of galaxies and our quest for the cosmic dawn. Richard S. Ellis is professor of astrophysics at University College London and a world-renowned observational astronomer who has made numerous discoveries about the nature and evolution of the universe. We start off discussing the human aspects of observational astronomy where teams from all over the world first compete for participating in constructing large telescopes and then compete for securing blocks of time to make observations. We review the taxonomy of large and most powerful ground based telescopes and discuss effectiveness and contribution of space telescopes towards observational astronomy. First light in the universe and the assembly of galaxies in the early universe are among the four main areas that the James Webb Space Telescope will focus on. We dig deep on these points, and what expectations researchers have from this new space telescope. We then discuss how human ingenuity has led to the development of techniques such as adaptive mirrors and application of gravitational lensing to improve our observations. We then focus on the cutting edge research on the quest for cosmic dawn and dig deep on the physics and chemistry of the early universe. We discuss the role dark matter might have played in the formation of early galaxies. We also touch upon the origin of life in the universe, and briefly debate the question “are we alone”. This has been a fun discussion that is highly informative. Complement this discussion with ""Exploring the Mysteries of Our Universe’s First Seconds" with Dr Dan Hooper” available at: https://www.bridgingthegaps.ie/2020/09/at-the-edge-of-time-dr-dan-hooper/ And then listen to ""The End of Everything (Astrophysically Speaking)” with Dr Katie Mack” available at: https://www.bridgingthegaps.ie/2020/08/the-end-of-everything-astrophysically-speaking-with-dr-katie-mack/

The rise of the platform economy puts state-like power in the hands of platform owners with little or no accountability. Over the past few decades, the chaotic and lawless early Internet evolved into a digital reality where e-commerce and digital services platform owners dictate decisions that affect millions living in different countries and jurisdictions. In his book “Cloud Empires: How Digital Platforms Are Overtaking the State and How We Can Regain Control” professor Vili Lehdonvirta explains how tech platforms got to where they are. The book outlines the history and evolution of tech platforms by telling the stories of individuals, the role they played in shaping and reshaping the Internet leading to the present day digital reality. Lehdonvirta emphasises that we can only begin to democratise digital platforms if we recognize them for what they are: institutions as powerful as the state. In this episode of Bridging the Gaps, I speak with Professor Vili Lehdonvirta; we discuss the book, the new social order established by the digital platform companies, and how the accumulated power of platforms could be challenged to hold them more accountable and to regain control. Vili Lehdonvirta is Professor of Economic Sociology and Digital Social Research at the Oxford Internet Institute at the University of Oxford. His research examines how digital technologies are used to reshape the organisation of economic activities in society. His research focuses on the questions such as what are the implications to workers, entrepreneurs, and states, and how can this digital economy be governed? His research draws on theories and approaches from economic sociology, political economy, industrial relations, new institutional economics, and science and technology studies. We begin by discussing the chaotic and lawless days of the early Internet. We explore the emergence of the underlying theme to resist the undue influence of outsiders and to resist government regulations in favour of giving users more control, even in the early days of Usenet. We then discuss the emergence of Bitcoin in the context of a number of historic parallels such as the medieval economy and the Athenian peasant revolt. We explore the possibility, or perhaps the impossibility, of achieving true neutrality and privacy using BitCoin. At this point we start looking at the true nature of state-like powers accumulated by today’s cloud empires. An interesting point we touch upon is that similar to independent states and sovereign countries, are these state-like cloud empires protecting their users. We then look at the legal rights of employees working in these giant organisations. Finally we look at the two questions that emerge from the subtitle of the book “How digital platforms are overtaking the state and how we can regain control”. The first question is why it is important that we take back control, and the second question is, how should we do this. This has been an enlightening and thought provoking discussion. Complement this discussion with ““Working with AI: Real Stories of Human-Machine Collaboration” with Professor Thomas Davenport and Professor Steven Miller” available at: https://www.bridgingthegaps.ie/2022/10/working-with-ai-real-stories-of-human-machine-collaboration-thomas-davenport-steven-miller/ And then listen to ““Philosophy of Technology” with Professor Peter-Paul Verbeek” available at: https://www.bridgingthegaps.ie/2021/01/philosophy-of-technology-with-professor-peter-paul-verbeek/

The heartbeat may be the first physical manifestation of an unborn child that can be seen six weeks after conception, and it continues roughly 100,000 times per day for as long as we are alive. Scientists and researchers have attempted to recreate the heart's flawless engineering for decades in labs all around the world, but have been unsuccessful. Its exact operation and capacity to meet both our bodily and emotional demands makes it a marvel of engineering that is unmatched by anything built by humans. Any damage to this vital organ of the human body could result in problems that are potentially fatal. In this episode of Bridging the Gaps I speak with professor Sian Harding about new scientific developments that are opening up the mysteries of the heart, as outlined in her new book “The Exquisite Machine: The New Science of the Heart”. We discuss cutting-edge technologies such as stem cells, gene editing, artificial intelligence and big data that have crucial real-world consequences for health and well-being.These technologies are enabling experiments and clinical trials that will lead to the development of new treatments for heart diseases. Professor Sian Harding is a leading authority in cardiac science, and emeritus professor of cardiac pharmacology in Imperial College London. She was special advisor to the House of Commons Science and Technology Select Committee on Regenerative Medicine, and has been awarded the Imperial College Medal and a lifetime achievement award from the European Society of Cardiology. We start off with a detailed discussion of how our present day understanding of the functioning of the human heart developed. We then discuss the cutting edge research on cardiac stem cells, touching upon the experiments where a small number of beating cells were created in the labs. The application of Artificial Intelligence and Big Data Analytics are playing an important role in the field of cardiac research; we go through these topics in detail. Plasticity is a concept that we associate with the brain and its ability to rewire itself to manage any damage or other changes; We discuss the term plastic brain that Sian Harding uses in the book while explaining the resilience of our heart. We then discuss the nervous system that ensures that the heart responds to changing needs. We look into the relation between the emotions and functioning of the heart, discussing that the heart not only responds to our emotions but creates emotions as well. And finally we touch upon the importance of keeping “gender” in mind when developing and implementing solutions for heart related diseases and problems. This has been a highly informative discussion. 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 Next 500 Years: Engineering Life to Reach New Worlds” with Professor Christopher Mason” available at: https://www.bridgingthegaps.ie/2022/05/the-next-500-years-engineering-life-to-reach-new-worlds-with-professor-christopher-mason/

Management and technology experts Professor Thomas Davenport and Professor Steven Miller discuss their book 'Working with AI' which explores how AI alters the way we work, automating specific tasks and freeing people to do more important and difficult work. They provide real-world case studies of AI-augmented occupations. They also discuss the impact of AI on the job market, the future of work, and the potential job dislocation caused by automation. The podcast covers the challenges of implementing AI in organizations, the impact of AI on income distribution and job market, and various AI-enabled applications in security and concierge operations. It highlights the importance of hybrid intelligence and the need for effective transition management.

A single fertilised egg generates an embryo. Different cell types in this embryo develop into various organs of a new human being, including a new human brain. Everything starts with a single fertilised egg, and in the embryo, some embryonic cells develop into neural stem cells that construct the brain. By the time a baby is born, its brain is already made up of billions of precisely designed neurons that are connected by trillions of synapses to form a small, compact but incredibly powerful supercomputer. In his recent book “Zero to Birth: How the Human Brain Is Built” pioneering experimental neurobiologist professor William Harris takes the reader on an incredible journey to the very edge of creation, from the moment an egg is fertilised to every stage of a human brain's development in the womb — and even a bit beyond. In this episode of Bridging the Gaps, I speak with Professor William Harris the process of how the brain is built. William Harris is professor emeritus of anatomy at the University of Cambridge. He is the coauthor of Development of the Nervous System and Genetic Neurobiology and the co-editor of Retinal Development. He is a fellow of the Royal Society. We begin by examining the evolutionary history of the brain, which spans billions of years and in the Proterozoic eon, when multicellular animals first descended from single-celled organisms, and then we discuss how the development of a fetal brain over the course of nine months reflects the brain's evolution through the ages. We discuss the emergence of first neural stem cells and how the formation of the neural plate and then its progress to the neural tube give the first glimpses of the development of the brain in an embryo. We discuss in detail how cells divide and create neural stem cells and then how these stem cells start producing neurons. A fascinating topic that we then cover is how individual neurons form connections with other neurons. Professor Harris explains how comparative animal studies have been crucial to understanding what makes a human brain human, and how advances in science are assisting us in understanding many qualities that don't manifest until later in life. This has been a fascinating discussion on an intriguing topic. Complement this discussion with “The Spike: Journey of Electric Signals in Brain from Perception to Action with Professor Mark Humphries” available at: https://www.bridgingthegaps.ie/2021/06/the-spike-journey-of-electric-signals-in-brain-from-perception-to-action-with-professor-mark-humphries/ And then listen to “The Self-Assembling Brain” and the Quest for Artificial General Intelligence with Professor Peter Robin Hiesinger available at: https://www.bridgingthegaps.ie/2021/11/the-self-assembling-brain-and-the-quest-for-artificial-general-intelligence-with-professor-peter-robin-hiesinger/

What is the true nature of reality? Does the objective reality reported back by our senses paint a complete picture of the true reality? Is it possible that the world we see is not objective reality and it is just an interface to a deeper, true reality. In his book “The Case Against Reality: Why Evolution Hid the Truth from Our Eyes” cognitive scientist Donald Hoffman Challenges leading scientific theories that claim that our senses report back objective reality. He argues that while we should take our perceptions seriously, we should not take them literally. He presents the evolutionary concept of "Fitness Beats Truth" to demonstrate that evolution very probably moulded our minds for fitness rather than accuracy, resulting in the mismatch between "things-in-themselves" and our perceptions of them. In this episode of Bridging the Gaps I speak with professor Donal Hoffman; we discuss his “Interface Theory of Perception” and dig deep on latest research in cognitive science and perception, and how it relates to our understanding of the true nature of reality. Donald Hoffman is a professor of Cognitive Sciences at the University of California, Irvine. He is a cognitive psychologist and popular science author. His research focuses on perception, evolution, and consciousness. We begin by discussing the present understanding of the hard problem of consciousness. Then we talk about Hoffman’s view that all main scientific theories, such as Einstein's theory, theories and our present understanding of Quantum Physics and the theory of natural selection, all inform us that our present approach of trying to understand reality is not working. I then ask him that why in his view we have evolved in a manner that we don’t see the real underlying reality and we just perceive a superficial realty. We then discuss in detail his theory and ideas about the nature of reality. We touch upon the question that do we live in a simulation. We also discuss Panpsychism. Finally I ask that how the research on the question of the true nature of reality should proceed. Complement this discussion with “From Consciousness to Synthetic Consciousness: From One Unknown to Another Unknown with David Chalmers” available at: https://www.bridgingthegaps.ie/2015/03/from-consciousness-to-synthetic-consciousness-from-one-unknown-to-another-unknown-with-david-chalmers/ And then listen to “Why You Are Not Your Brain? A Conversation on Consciousness with Alva Noe” available at: https://www.bridgingthegaps.ie/2017/04/why-you-are-not-your-brain-a-conversation-with-alva-noe/

We live in an age of increasing complexity and uncertainty. We live in a time when humanity faces extremely complex challenges. Our ability, or lack thereof, to create solutions to such extremely complicated challenges may determine our long-term survival as a civilization. The question is: is our existing style of thinking adequate, or do we require a new style of thinking in order to innovate and lead into the future. In their recent book Julio Ottino and Bruce Mau make a case for “The Nexus”, a radically new way of thinking — one in which art, technology, and science converge to expand our creativity and augment our insight. In this episode or Bridging the Gaps I speak with Julio Ottino who explains “the Nexus” and guides us how to embrace the powerful idea of complementarity, where opposing extremes coexist. We discuss how blurring the lines between the three major realms of human creation — art, technology, and science — results in a significant expansion of thinking spaces and a richness of potential ideas. Julio Ottino is Dean of Engineering and Applied Sciences, and a professor of Chemical and Biological Engineering at Northwestern University, in Illinois. He is also the founding co-director of Northwestern University's Institute on Complex Systems. He is a thought leader, author, artist, and internationally recognized researcher in chaos theory and complex systems whose work has been featured in “Nature”, “Science”, and “Scientific American”. We begin our discussion by looking back at the time before the divergence of disciplines and how key figures in science immensely benefited from talents and skills in a variety of fields. Then we talk about how, when, and why the disciplines diverged. We delve into the concept of "the Nexus" and discuss whole-brain thinking. The book is jam-packed with wonderful photographs and diagrams. I ask Professor Ottino to describe the process that he followed to write this book. This has been a wonderful discussion. Complement this discussion 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 with ““Learning How to Learn”: Techniques to Help You Learn with Dr Barbra Oakley” available at: https://www.bridgingthegaps.ie/2022/01/learning-how-to-learn-techniques-to-help-you-learn-with-dr-barbra-oakley-classic/ And the listen to “Multiple Intelligences, Future Minds and Educating The App Generation: A discussion with Dr Howard Gardner” available at: https://www.bridgingthegaps.ie/2015/07/multiple-intelligences-future-minds-and-educating-the-app-generation-a-discussion-with-dr-howard-gardner/

There is a consensus among the researchers in the field of artificial intelligence and machine learning that today’s artificial intelligence systems are narrowly focused, are designed to tackle specialised tasks and cannot operate in general settings. An important feature of the human brain that enables us to operate in general settings, and in unfamiliar situations is our common sense. In their new book “Machines like Us: TOWARD AI WITH COMMON SENSE” Hector Levesque and Ronald Brachman explain “why current AI systems hopelessly lack common sense, why they desperately need it, and how they can get it”. In this episode of Bridging the Gaps, I speak with Professor Ronald Brachman, one of the authors of this book. We discuss various topics covered in the book and explore the question, how we can create artificial intelligence with broad, robust common sense rather than narrow, specialised expertise. Professor Ron Brachman is the director of the Jacobs Technion-Cornell Institute and is a professor of computer science at Cornell University. Previously, he was the Chief Scientist of Yahoo! and head of Yahoo! Labs. Prior to that, he was the Associate Head of Yahoo! Labs and Head of Worldwide Labs and Research Operations. We start off with a detailed discussion about the progress that we have made in recent decades, in developing narrowly focused and task oriented artificial intelligence systems. Some of these systems outperform humans; however we do acknowledge and discuss the need for developing artificial intelligence systems that can operate in general settings. We discuss the concept of artificial general intelligence and explore how understanding “human common sense” and equipping AI with common sense is an extremely important milestone in our journey toward developing artificial general intelligence. We discuss the challenge of developing a clear and thorough understanding of the nature and working of human common sense. We explore how “common sense” might be modelled and incorporated in future artificial intelligence systems. We then discuss the future of artificial general intelligence. Complement this discussion with ““Artificial Intelligence: A Guide for Thinking Humans” with Professor Melanie Mitchell” available at:https://www.bridgingthegaps.ie/2022/05/artificial-intelligence-a-guide-for-thinking-humans-melanie-mitchell/ And 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 the 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/

We are the only known species that understands species go extinct. We also understand that climate calamity, apocalyptic war, or the demise of the sun in a few billion years will all inevitably bring life on Earth to an end. So it is extremely important we do whatever we can to avoid extinction. We have a moral obligation to prevent extinction, and we have a responsibility to act as life-form shepherds—not just for our species, but for all species on which we rely, as well as those yet to come. This may involve finding a new home planet, developing innovative ways to undertake long haul space journeys. This may also involve re-engineering life and human genetics for travelling to, and for surviving on other worlds. Dr Christopher Mason argues in his provocative and engaging book “The Next 500 Years: Engineering Life to Reach New Worlds” that we have a moral duty to do just that. In this episode of Bridging the Gaps I speak with Dr Christopher Mason and we discuss his inspiring vision of the next 500 years of spaceflight and human exploration. Dr Christopher Mason is a professor of genomics, physiology, and biophysics at Weill Cornell Medicine and the Director of the WorldQuant Initiative for Quantitative Prediction. He is a geneticist and computational biologist who has been a Principal Investigator and Co-investigator of 11 NASA missions and projects. We start by discussing the moral obligation, moral duty that we must protect our species against extinction and to ensure that life continues. We discuss the impact of living in hard and unfamiliar environment of space on the human body and talk through the findings of “the Twin Study” which examines the impact of nearly a full year in space on astronaut Scott Kelly, using his identical brother Mark as control. We then discuss moral and ethical dimensions of engineering life and making changes in human genome and undertaking genetic modifications of humans. We review the 500 years plan that Dr Chris Mason presents in this book and go through various phases of this plan. We talk about engineering of genomes, cellular engineering, synthetic biology and preparing humans for long haul space flights. We discuss in detail how CRISPR tool works and what it enables us to do. We also discuss feature and functional re-engineering of the human genome by borrowing features and functions from other species. We once again touch upon moral, ethical, and social implications of re-engineering life and try to imagine a future full of variety of life forms evolved through directed and iterative re-engineering of life, coming from the same source that is human. Complement this discussion with ""The End of Astronauts”, Robotic Space Exploration and Our Future on Earth and Beyond with Professor Martin Rees” available at: https://www.bridgingthegaps.ie/2022/03/the-end-of-astronauts-robotic-space-exploration-and-our-future-on-earth-and-beyond-with-professor-martin-rees/ And then listen to ""Nano Comes to Life”: DNA NanoTech, Medicine and the Future of Biology with Professor Sonia Contera” available at: https://www.bridgingthegaps.ie/2021/08/nano-comes-to-life-dna-nanotech-medicine-and-the-future-of-biology-with-professor-sonia-contera/