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    • Exploring the benefits of Indeed for hiring and Rocket Money for managing subscriptionsSeek reliable sources for essential tasks like hiring, managing finances, and understanding historical facts to save time, money, and avoid misunderstandings. Leverage platforms like Indeed and Rocket Money for hiring and managing subscriptions respectively.

      When it comes to hiring or managing your personal finances, relying on the right platforms can save you time, money, and frustration. During our discussion, we explored the benefits of using Indeed for hiring and Rocket Money for managing subscriptions. Indeed, with its massive reach and advanced matching engine, can help employers find high-quality candidates quickly and efficiently. On the other hand, Rocket Money assists individuals in identifying and canceling unwanted subscriptions, thereby reducing unnecessary expenses. Moreover, we touched upon the importance of accurate information and the potential consequences of misconceptions. In the context of archaeology, David Stewart discussed how the Mayan civilization and their calendar have been subjected to various misinterpretations and misrepresentations in popular literature. This misinformation not only distorts historical facts but also contributes to unnecessary fear and confusion. In conclusion, the key takeaway is to seek reliable sources for essential tasks, whether it's hiring, managing finances, or understanding historical facts. By leveraging the power of platforms like Indeed and Rocket Money, and critically evaluating information from credible sources, we can save time, money, and avoid misunderstandings.

    • From pre-agricultural society to literate civilizationThe Maya civilization evolved from a pre-agricultural society to a literate civilization with impressive art, architecture, and writing during the Classic Period.

      The Maya civilization, which existed from around 1500 BC to 900 AD in Central America and Mexico, underwent an extraordinary transformation from a pre-agricultural society to a sedentary culture that built monumental cities and developed a complex writing system. During the Classic Period, from 200 AD to 900 AD, the Maya were a literate civilization with fantastic art and architecture, leaving behind precious documents and inscriptions. However, around 900 AD, many Maya cities were abandoned in a phenomenon known as the Maya collapse. The causes of this collapse are still a topic of ongoing research and debate among archaeologists. Despite this, the Maya people are still around today, with about 5 million speakers of Mayan languages. Their civilization is a testament to the rich history and complexity of the ancient Americas.

    • The Fall of the Ancient Maya CivilizationExternal factors like climate change and over farming, as well as internal conflicts and war, contributed to the collapse of the ancient Maya civilization around 900 AD. Understanding this complex interplay is crucial for considering the potential consequences of current pressures on our civilization.

      The ancient Maya civilization underwent significant transformations, with the classic period being the most well-documented. However, around 900 AD, there was a collapse of the political system, leading to population shifts and the emergence of new civilizations. External factors like climate change and over farming may have contributed, but human factors, particularly war and conflict, were also crucial. The complex interplay of these factors is still being studied, and it serves as a reminder that civilizations have risen and fallen throughout history, with our own being no exception. Despite our current growth and advancements, it's essential to learn from the past and consider the potential consequences of external and internal pressures.

    • Ancient Maya Civilization: Advanced Without MetalworkingThe Maya civilization, despite lacking metalworking tools, built impressive structures, had advanced scientific knowledge, and remained resilient during Spanish conquest.

      The ancient Maya civilization, which existed before the collapse as we know it, was technologically advanced despite using primarily stone tools. They built massive structures, made intricate jewelry, and had an extraordinary scientific awareness, particularly in astronomy. The Maya civilization did not have metalworking technology for tools, but they still managed to create a high civilization. Their scientific understanding of the cosmos was impressive, even if they didn't have the concept of a solar system. The Spanish conquest of the Maya was a protracted process, taking decades, and some Maya communities remained independent until the late 1600s. The Maya civilization should not be underestimated due to their lack of metalworking technology or the fact that they are a relatively recent part of Mesoamerican history. Instead, we should appreciate their remarkable achievements with the technology they had.

    • The Maya's Advanced Understanding of AstronomyThe Maya civilization had a sophisticated understanding of astronomy, using it to create calendars and frame their cosmology, observing planets like Venus and Mars as deities, and considering Earth as the center of everything.

      The ancient Maya civilization had a sophisticated understanding of astronomy, which they used to create calendars and frame their cosmology. They observed the movements and cycles of planets like Venus and Mars and considered them as deities or gods. Their concept of Earth was as the center of everything, and they created what is now called indigenous science. Archaeology of the Maya civilization is ongoing, with new discoveries being made through advanced technologies like lidar, which can penetrate the forest canopy and reveal hidden sites. Despite popular beliefs, there's no evidence of highly advanced ancient civilizations that have completely eluded archaeology. The Maya civilization left behind a rich legacy, and we continue to uncover new knowledge about it.

    • Surviving Mayan Texts: A Bridge to Understanding an Ancient CivilizationDespite some Spanish efforts to destroy their records, surviving Mayan texts provide invaluable insights into their history, culture, and writing system.

      The ancient Maya civilization, though much of their historical records were intentionally destroyed by the Spanish, leaves us with a wealth of information through surviving books and inscriptions on various materials. These texts provide valuable insights into their history, culture, and writing system. The Mayans wrote extensively on various surfaces, from stone monuments and temple walls to dishware and jade necklaces. The Spanish, while some sought to preserve and learn from these cultures, others destroyed their records out of a human impulse to erase differences. Despite this, the surviving texts have provided invaluable resources for scholars, serving as a bridge to understanding this fascinating civilization. The complexities of the Spanish chroniclers, who both destroyed and preserved, are a reminder of the intricacies of human behavior throughout history.

    • Decoding the Maya Writing SystemThe Maya writing system is phonetic, allowing us to read 80-90% of ancient texts in their original language. Classic Mayan, the ancient lingua franca, can be related to modern Mayan languages for better understanding.

      The Maya writing system, despite appearing as a sea of squiggles to the untrained eye, is a phonetic system where every glyph represents a sound or a word. This was a significant discovery made in the last 50 years, and it allows us to read about 80% to 90% of ancient Maya texts in their original language. The existence of modern Mayan languages, some of which are closely related to the ancient language, is invaluable in helping us understand the pronunciation and meaning of the glyphs. The ancient Maya language had a lingua franca, or an official courtly language, which is the one used in most ancient texts. This language, called classic Mayan, can be related to current Mayan languages, some of which are still being spoken in Mexico, Honduras, and Guatemala. Understanding these languages better can provide valuable insights into the meanings of ancient texts. It's important to note that these languages developed independently from Indo-European or East Asian languages, but there might be similarities in their grammar or structure due to convergent evolution. Overall, the discovery and deciphering of the Maya writing system has significantly expanded our knowledge of ancient Maya civilization and culture.

    • Deciphering Ancient American Languages: A Fascinating ExplorationThe ancient languages of the Americas, like Nahuatl and Mayan, have complex writing systems and unique histories. Deciphering them involves recognizing variations and understanding the deep structure of the writing system, such as the Mayan script's symbols for sounds and words.

      The ancient languages of the Americas, such as Nahuatl spoken by the Aztecs and Mayan, are independently developed and not historically related to languages from the old world. These languages have complex writing systems, like the Mayan script, which includes signs for individual words and sounds. Deciphering these languages involves recognizing variations and understanding the deep structure of the writing system. For instance, a Mayan word for "chocolate," cacaw, was deciphered from a clay vessel in Guatemala that contained the preserved residue of the substance itself. The Mayan script is not an alphabet in the traditional sense, but rather a flexible system of symbols representing sounds and words. The process of deciphering these ancient languages is a fascinating and ongoing exploration into the deep cognitive structures and artistic sensibilities that have shaped human communication throughout history.

    • The Maya civilization's complex calendar systemThe Maya civilization used a complex calendar system based on a vigesimal numeration system, which included a lunar calendar, a solar year calendar, a ritual divination calendar, and a larger long count system, allowing them to keep track of their time.

      The ancient Maya civilization used a complex calendar system that was based on a vigesimal numeration system, which is a counting system using a base of 20. This system was used for both counting and for their calendars, which included a lunar calendar, a solar year calendar, a ritual divination calendar, and a larger system called the long count. The long count was based on the number 20 and was designed to fit into a solar year, creating a unit of time almost equal to a year. However, to make this unit of time equal to 360, instead of having 18 units of 20 days, they had one unit that only went up to 18. This system may seem confusing, but it was essential for the Maya civilization to keep track of their calendar and time. Despite the complexity of their numeration system, early scholars were able to decipher the Maya calendars in the late 1800s, starting with the numerology and the understanding of the bar and dot symbols representing numbers from 1 to 20. This allowed them to read the dates in the ancient Maya records, even if the language itself remained unreadable.

    • The Maya's Calendar System and Its Vast Representation of TimeThe Maya had a complex calendar system that allowed them to calculate and represent vast periods of time, beyond a thousand years, using a base-20 numeral system and cycles of different lengths.

      The ancient Maya civilization had a complex and intricately designed calendar system, which allowed them to calculate and represent long periods of time, far beyond what we commonly understand as a thousand years. They used a base-20 numeral system, with units of 20 days, 360 days (a tzolk'in), 20 tzolk'ins (a katun), 20 katuns (a baktun), and so on. This system allowed them to calculate and represent vast periods of time, including millions and even billions of years. However, there was a misconception that arose around the year 2012, when there was a switchover in the Maya calendar from one baktun to the next. Many people believed that this marked the end of the world, based on various interpretations and misconceptions. But the Maya never predicted the end of the world; instead, they saw this as the beginning of a new cycle. The calendar kept going, and the Maya's representation of time dwarfs our own cosmology, demonstrating their deep understanding of mathematics and the universe. In summary, the Maya's calendar system is a remarkable example of human ingenuity and the ability to represent and understand vast periods of time. Despite the misconceptions that arose around the year 2012, the Maya's calendar continued to function as it always had, marking the passage of time and providing insights into the ancient civilization's cosmological beliefs.

    • The Maya Long Count Calendar: A Numerological Construct of TimeThe ancient Maya civilization created a complex calendar system, the Long Count Calendar, based on a numerological construct of time, with significant cycles like the Baktun cycle, and attached mythological meanings to these cycles.

      The ancient Maya civilization developed a complex and intricate calendar system, called the Long Count Calendar, which was based on a numerological construct of time, rather than astronomical observations. This calendar consisted of various cycles, with the Baktun cycle being the most significant one, and they aimed to create 20 orders above it. The Maya attached mythological meanings to these cycles, viewing them as important dates in the creation of their present era. The base date for this calendar was 3114 BC, and it functioned like an odometer, with the numbers representing the progression of time. The Maya saw themselves as being in the middle of this period, rather than at the beginning or near the end. This calendar was likely invented during the early stages of Maya civilization, around 700-600 BC. Despite the lack of a clear beginning or end to the universe according to this calendar, the Maya created myths and narratives to explain the creation of their world order.

    • Understanding Ancient Civilizations Through Mythology and NarrativesAncient civilizations, like the Maya, used mythology and narratives to record their origins and beliefs, which continue to be valuable sources for understanding their history and human storytelling impulse. New archaeological discoveries and scientific insights reveal the interconnectedness of science and mythology throughout history.

      Ancient civilizations, such as the Maya, had a deep connection to the concept of time and created narratives about their origins through mythology. These narratives were recorded in various forms, including epic poems like the Popol Vuh, which tells the story of the creation of the world and the hero twins. The Popol Vuh, written in Chiche Mayan and Spanish, is an important source for understanding the Maya's beliefs and connection to their history. Today, archaeology and science continue to uncover new information about these ancient civilizations, providing valuable insights into their past and the human impulse to tell stories. The study of these narratives and artifacts reveals the interconnectedness of science and mythology throughout history. It's an exciting time for researchers in this field, with new technologies and discoveries shedding light on the mysteries of ancient civilizations.

    • Exploring the Maya civilization's rich heritageNew discoveries reveal the great figures, intellectual achievements, and legacy of the Maya civilization, connecting indigenous peoples with their past and inspiring continued research and education.

      The ongoing exploration and discovery of Mayan history, through a combination of physical archaeological sites, scientific research, historical documents, and cultural understanding, is shedding new light on the great figures, intellectual achievements, and legacy of the Maya civilization. This convergence of knowledge is not only important for scholars and historians but also for the general public, especially for indigenous peoples of the area, who are now reconnecting with their rich heritage. The future holds the promise of increased awareness and education about the Maya's great kings, astronomers, and intellectual accomplishments, making it an exciting time for those interested in history and archaeology. For those living in the Americas, this is an essential part of our shared heritage that deserves recognition and exploration.

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    The Earth's climate keeps changing, largely due to the effects of human activity, and we haven't been doing enough to slow things down. Indeed, over the past year, global temperatures have been higher than ever, and higher than most climate models have predicted. Many of you have probably seen plots like this. Today's guest, Gavin Schmidt, has been a leader in measuring the variations in Earth's climate, modeling its likely future trajectory, and working to get the word out. We talk about the current state of the art, and what to expect for the future.

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    Blog post with transcript: https://www.preposterousuniverse.com/podcast/2024/05/20/276-gavin-schmidt-on-measuring-predicting-and-protecting-our-climate/

    Gavin Schmidt received his Ph.D. in applied mathematics from University College London. He is currently Director of NASA's Goddard Institute for Space Studies, and an affiliate of the Center for Climate Systems Research at Columbia University. His research involves both measuring and modeling climate variability. Among his awards are the inaugural Climate Communications Prize of the American Geophysical Union. He is a cofounder of the RealClimate blog.


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    275 | Solo: Quantum Fields, Particles, Forces, and Symmetries

    275 | Solo: Quantum Fields, Particles, Forces, and Symmetries

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    Blog post with transcript: https://www.preposterousuniverse.com/podcast/2024/05/13/275-solo-quantum-fields-particles-forces-and-symmetries/

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    AMA | May 2024

    AMA | May 2024

    Welcome to the May 2024 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Patreons, whittle them down to a more manageable number -- based primarily on whether I have anything interesting to say about them, not whether the questions themselves are good -- and sometimes group them together if they are about a similar topic. Enjoy!

    Blog post with questions and transcript: https://www.preposterousuniverse.com/podcast/2024/05/06/ama-may-2024/

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    Here is the memorial to Dan Dennett at Ars Technica.

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    274 | Gizem Gumuskaya on Building Robots from Human Cells

    274 | Gizem Gumuskaya on Building Robots from Human Cells

    Modern biology is advancing by leaps and bounds, not only in understanding how organisms work, but in learning how to modify them in interesting ways. One exciting frontier is the study of tiny "robots" created from living molecules and cells, rather than metal and plastic. Gizem Gumuskaya, who works with previous guest Michael Levin, has created anthrobots, a new kind of structure made from living human cells. We talk about how that works, what they can do, and what future developments might bring.

    Blog post with transcript: https://www.preposterousuniverse.com/podcast/2024/04/29/274-gizem-gumuskaya-on-building-robots-from-human-cells/

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    Gimez Gumuskaya received her Ph.D. from Tufts University and the Harvard Wyss Institute for Biologically-Inspired Engineering. She is currently a postdoctoral researcher at Tufts University. She previously received a dual master's degree in Architecture and Synthetic Biology from MIT.

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    273 | Stefanos Geroulanos on the Invention of Prehistory

    273 | Stefanos Geroulanos on the Invention of Prehistory

    Humanity itself might be the hardest thing for scientists to study fairly and accurately. Not only do we come to the subject with certain inevitable preconceptions, but it's hard to resist the temptation to find scientific justifications for the stories we'd like to tell about ourselves. In his new book, The Invention of Prehistory, Stefanos Geroulanos looks at the ways that we have used -- and continue to use -- supposedly-scientific tales of prehistoric humanity to bolster whatever cultural, social, and political purposes we have at the moment.

    Blog post with transcript: https://www.preposterousuniverse.com/podcast/2024/04/22/273-stefanos-geroulanos-on-the-invention-of-prehistory/

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    Stefanos Geroulanos received his Ph.D. in humanities from Johns Hopkins. He is currently director of the Remarque Institute and a professor of history at New York University. He is the author and editor of a number of books on European intellectual history. He serves as a Co-Executive Editor of the Journal of the History of Ideas.


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    272 | Leslie Valiant on Learning and Educability in Computers and People

    272 | Leslie Valiant on Learning and Educability in Computers and People

    Science is enabled by the fact that the natural world exhibits predictability and regularity, at least to some extent. Scientists collect data about what happens in the world, then try to suggest "laws" that capture many phenomena in simple rules. A small irony is that, while we are looking for nice compact rules, there aren't really nice compact rules about how to go about doing that. Today's guest, Leslie Valiant, has been a pioneer in understanding how computers can and do learn things about the world. And in his new book, The Importance of Being Educable, he pinpoints this ability to learn new things as the crucial feature that distinguishes us as human beings. We talk about where that capability came from and what its role is as artificial intelligence becomes ever more prevalent.

    Blog post with transcript: https://www.preposterousuniverse.com/podcast/2024/04/15/272-leslie-valiant-on-learning-and-educability-in-computers-and-people/

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    Leslie Valiant received his Ph.D. in computer science from Warwick University. He is currently the T. Jefferson Coolidge Professor of Computer Science and Applied Mathematics at Harvard University. He has been awarded a Guggenheim Fellowship, the Knuth Prize, and the Turing Award, and he is a member of the National Academy of Sciences as well as a Fellow of the Royal Society and the American Association for the Advancement of Science. He is the pioneer of "Probably Approximately Correct" learning, which he wrote about in a book of the same name.

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    AMA | April 2024

    AMA | April 2024

    Welcome to the April 2024 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Patreons, whittle them down to a more manageable number -- based primarily on whether I have anything interesting to say about them, not whether the questions themselves are good -- and sometimes group them together if they are about a similar topic. Enjoy!

    Blog post with questions and transcript: https://www.preposterousuniverse.com/podcast/2024/04/08/ama-april-2024/

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    271 | Claudia de Rham on Modifying General Relativity

    271 | Claudia de Rham on Modifying General Relativity

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    Blog post with transcript: https://www.preposterousuniverse.com/podcast/2024/04/01/271-claudia-de-rham-on-modifying-general-relativity/

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    Claudia de Rham received her Ph.D. in physics from the University of Cambridge. She is currently a professor of physics and deputy department head at Imperial College, London. She is a Simons Foundation Investigator, winner of the Blavatnik Award, and a member of the American Academy of Arts and Sciences. Her new book is The Beauty of Falling: A Life in Pursuit of Gravity.


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    270 | Solo: The Coming Transition in How Humanity Lives

    270 | Solo: The Coming Transition in How Humanity Lives

    Technology is changing the world, in good and bad ways. Artificial intelligence, internet connectivity, biological engineering, and climate change are dramatically altering the parameters of human life. What can we say about how this will extend into the future? Will the pace of change level off, or smoothly continue, or hit a singularity in a finite time? In this informal solo episode, I think through what I believe will be some of the major forces shaping how human life will change over the decades to come, exploring the very real possibility that we will experience a dramatic phase transition into a new kind of equilibrium.

    Blog post with transcript and links to additional resources: https://www.preposterousuniverse.com/podcast/2024/03/25/270-solo-the-coming-transition-in-how-humanity-lives/

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    269 | Sahar Heydari Fard on Complexity, Justice, and Social Dynamics

    269 | Sahar Heydari Fard on Complexity, Justice, and Social Dynamics

    When it comes to social change, two questions immediately present themselves: What kind of change do we want to see happen? And, how do we bring it about? These questions are distinct but related; there's not much point in spending all of our time wanting change that won't possibly happen, or working for change that wouldn't actually be good. Addressing such issues lies at the intersection of philosophy, political science, and social dynamics. Sahar Heydari Fard looks at all of these issues through the lens of complex systems theory, to better understand how the world works and how it might be improved.

    Blog post with transcript: https://www.preposterousuniverse.com/podcast/2024/03/18/269-sahar-heydari-fard-on-complexity-justice-and-social-dynamics/

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    Sahar Heydari Fard received a Masters in applied economics and a Ph.D. in philosophy from the University of Cincinnati. She is currently an assistant professor in philosophy at the Ohio State University. Her research lies at the intersection of social and behavioral sciences, social and political philosophy, and ethics, using tools from complex systems theory.


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    153 | John Preskill on Quantum Computers and What They’re Good For

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    John Preskill received his Ph.D. in physics from Harvard University. He is currently the Richard P. Feynman Professor of Theoretical Physics at Caltech and the Davis Leadership Chair at the Institute for Quantum Information and Matter, as well as an Amazon Scholar at Amazon Web Services. Before moving into quantum information, he was a leading researcher in quantum field theory and black holes. He is the winner of multiple bets with Stephen Hawking.


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    248 | Yejin Choi on AI and Common Sense

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    Blog post with transcript: https://www.preposterousuniverse.com/podcast/2023/08/28/248-yejin-choi-on-ai-and-common-sense/

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    Yejin Choi received a Ph.D. in computer science from Cornell University. She is currently the Wissner-Slivka Professor at the Paul G. Allen School of Computer Science & Engineering at the University of Washington and also a senior research director at AI2 overseeing the project Mosaic. Among her awards are a MacArthur fellowship and a fellow of the Association for Computational Linguistics.


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    216 | John Allen Paulos on Numbers, Narratives, and Numeracy

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    John Allen Paulos received his Ph.D. in mathematics from the University of Wisconsin, Madison. He is currently a professor of mathematics at Temple University. He s a bestselling author, and frequent contributor to publications such as ABCNews.com, the Guardian, and Scientific American. Among his awards are the Science Communication award from the American Association for the Advancement of Science and the Mathematics Communication Award from the Joint Policy Board of Mathematics. His new book is Who’s Counting? Uniting Numbers and Narratives with Stories from Pop Culture, Puzzles, Politics, and More.


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    255 | Michael Muthukrishna on Developing a Theory of Everyone

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    Blog post with transcript: https://www.preposterousuniverse.com/podcast/2023/10/30/255-michael-muthukrishna-on-developing-a-theory-of-everyone/

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    Michael Muthukrishna received his Ph.D. in psychology from the University of British Columbia. He is currently Associate Professor of Economic Psychology at the London School of Economics and Political Science. Among his awards are an Emerging Scholar Award from the Society for Personality and Social Psychology and a Dissertation Excellence Award from the Canadian Psychological Association. His new book is A Theory of Everyone: The New Science of Who We Are, How We Got Here, and Where We're Going.


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