Philosophy Talk: Select Episodes

More at https://philosophytalk.org/shows/space-time-continuum. Strange things are said about time: that it's illusory, that it has no direction. But what about space, or the space-time continuum? What exactly is space-time? Are space and time fundamental features of the world? How do Einstein’s special and general theories of relativity change our understanding of space-time? Is there a distinctio...

More at http://philosophytalk.org/shows/mystery-multiverse. At the foundation of modern theoretical physics lie the equations that define our universe, telling us of its beginnings, evolution, and future. Make even minor adjustments to the fundamental laws of the universe, and life as we know it would not exist. How do we explain this extraordinary fact that our universe is so uniquely fine-tuned...

More at http://philosophytalk.org/shows/dark-matter. All the matter we have ever observed accounts for less than 5% of the universe. The rest? Dark energy and dark matter: mysterious entities that we only know about from their interactions with other matter. We infer their existence to satisfy our laws—but are we justified in making conclusions about what we cannot directly measure? How far can we...

More at http://philosophytalk.org/shows/big-bang-before-and-after. The Big Bang theory is the prevailing theory about the “birth” of the universe. It posits a singularity, or super high density state from which the entire universe expanded and continues to expand. But what exactly is the Big Bang, and what’s the evidence that it took place? How do we account for the “Big Bang state”? Was there som...

More at http://philosophytalk.org/shows/why-something. The old metaphysical question – why anything exists at all – has perplexed and intrigued humankind for ages. It has long been a question reserved for philosophers, but now some physicists claim to have answered it. Yet these attempts have raised questions of their own: is this even a meaningful question in the first place? Can it be answered b...

More at http://philosophytalk.org/shows/ancient-cosmos. Even in ancient Greek society, philosopher-scientists engaged in heated debate about the origin, composition, and structure of our universe. Tracking our understanding of cosmology from then until now shows monumental shifts in thinking. So what did the Ancients think was the fundamental nature of the cosmos, and what kind of evidence did the...

More at http://philosophytalk.org/shows/living-through-others Imagine that the world will end in thirty days. Would your life have meaning anymore? Would anyone’s? It seems that there would no longer be any point to making technological or medical advances, developing new forms of art, or even taking good care of ourselves. Imagining the doomsday scenario shows that there is something particularly...

More at http://philosophytalk.org/shows/technology-immortality Some futurists believe we are not far from a time when technology and medicine will be so advanced that humans need no longer die of old age or other natural causes. Eventually, not only will we be able to replace our natural body parts, but we might even be able to “download” our selves into a new cybernetic body. But is this a realis...

More at http://philosophytalk.org/shows/reincarnation-past-lives-future-selves. According to Buddhist tradition, all people must suffer illness, aging, and death. Yet the universe is seen as a vast living entity, in which cycles of individual life and death are repeated without cease. Therefore death is a necessary part of the process of life, making renewal and new growth possible. So what does t...

More at http://philosophytalk.org/shows/whats-next-death-and-afterlife. The question of what happens to us after we die remains as mysterious now as it always was. Some think that death amounts to total annihilation of the self; others adhere to certain religious traditions, which teach that the immaterial soul (and, in some traditions, the resurrected body) can ultimately survive death. So how ar...

More at http://philosophytalk.org/shows/lure-immortality. Would you like to live forever? It is a tempting notion that has been explored and imagined for centuries. Perhaps immortality is desirable, but it might also be that death is a significant part of what gives meaning to life. So what would a society of immortal individuals look like? What might some of the challenges or rewards of an immort...

More at http://philosophytalk.org/shows/life-work-art. We know what it means for a painting to be beautiful. But what about a life? Like great works of art, great people exhibit style, originality, and creativity. Maybe, then, to live well is just to practice an ART of living. But what do the values that are important to a good life – happiness, moral goodness, or friendship, for example – have to...

More at http://philosophytalk.org/shows/finding-meaning-material-world. All there is in the world is physical stuff. That is the fundamental assumption of the materialist standpoint, and the picture given to us by science. But if there is no immaterial soul that survives the death of the body, no other realm to bestow meaning on our lives, how can we avoid despairing in light of this apparent poin...

More at http://philosophytalk.org/shows/freedom-and-free-enterprise. “Freedom” means the human capacity to choose among options, based on one’s own preferences and reasoning. It also stands for the political status to exercise such freedom on matters of conscience and to express opinions without interference from the state. Enlightenment thinkers also included the right to buy and sell property in...

More at http://philosophytalk.org/shows/ancient-wisdom-modern-times If the Ancients found themselves transported to the modern world, they would have much to learn about science, technology, and human thinking. But is there something the Ancients can still teach us about how to live a good life? What relevance do the virtues – wisdom, courage, prudence, justice, and so on – have for our modern tim...

More at http://philosophytalk.org/shows/physics-philosophy-and-theology. The world disclosed by the physical sciences can seem depressing. Modern physics, for example, has undermined the religious idea that the universe has a spiritual dimension. Quantum physics in particular seems to present the world as more paradoxical than rational. Is there room within – or in addition to – the world presente...

More at http://philosophytalk.org/shows/faith-reason-and-art-living It sounds plausible to require that all our beliefs be based on evidence and sound reasoning. Yet some people's most cherished beliefs, like their belief in a deity, are based on faith alone. Does that make those beliefs fundamentally irrational, or could there be some rational justification for such faith? And what about reason i...

More at http://philosophytalk.org/shows/good-evil-and-divine-plan A theodicy is an explanation by a philosopher or theologian about why a world created by a kind and all-powerful God contains so much suffering. It forces us to think about the nature of good and evil, whether the kind of knowledge an all-knowing God has leaves room for human freedom. Why do people who suffer often find their faith...

More at http://philosophytalk.org/shows/demands-morality. We all want to lead a moral life. But even if we all agreed on what that would mean, we still have to balance our own self-interest with the competing demands of morality. This becomes even more challenging when the decks are stacked against us, or when everyone around us is only looking out for themselves. So in the real world, what does i...

More at http://philosophytalk.org/shows/god-and-fine-tuned-universe. If the precise value of many physical constants had been different, the universe would not have supported life, human life, consciousness, philosophy and us. Is it just luck – without which we wouldn't even be here to worry about it? Or is there a Creator who wanted things to turn out the way they did, and fine-tuned the universe...

More at http://philosophytalk.org/shows/self. What is a self? Merely a human being? Or perhaps a soul? Hume claimed he could not find a self when he looked within, only a succession of impressions. But other philosophers seem to find transcendental selves, momentary selves, and objective selves, among others. Do the modern physical and biological sciences shed light on the self, or do they suggest...

More at http://philosophytalk.org/shows/unconditional-love. According to Corinthians 13, “Love is patient, love is kind and envies no one.” But is love always unconditional? Should it be? If unconditional love means that we love no matter what our beloved’s actions or traits are, doesn’t that suggest we should love everyone in this way? If not, how do we select just a few to love unconditionally?...

More at http://philosophytalk.org/shows/freedom-blame-and-resentment. When someone acts without regard for our feelings or needs, a natural response is to feel resentment toward that person. But is that a rational response? What if there's no such thing as free will? Is blame still appropriate in a deterministic universe? Or are we simply genetically programmed to respond emotionally to perceived...

More at http://philosophytalk.org/shows/pantheism. Pantheism is the doctrine that the world is either identical with God or an expression of His nature. Pantheistic ideas appear in many schools of Buddhism and Hinduism, and in the Tao-te-Ching. Pantheism also has had defenders in Western philosophy, including Heraclitus, Spinoza, Fichte, Schelling, and Hegel. Many of the Romantic poets, like Shell...

More at http://philosophytalk.org/shows/forgive-and-forget. At least forgive OR forget. Get things behind you. All good advice for those who don't want their life dominated by the bad things that have happened to them at the hands of others. This advice has also been applied to aggrieved populations following liberating reforms and revolutions, as in South Africa. But what is forgiveness? What are...