In this episode of Startalk Radio, renowned physicist and mathematician Brian Greene joins the show to discuss his book “Until the End of Time” and answer cosmic queries about the future of our species, interstellar travel, the nature of space and time, and the mysteries of the universe. The questions were sourced from the fan base, which overlaps with Startalk’s viewers. Brian Greene is a professor at Columbia University and a leading string theorist, known for his best-selling book “The Elegant Universe” and co-founding the World Science Festival in NYC.
Brian Greene discusses the uncertain future of the human species, highlighting the potential for self-destruction or the possibility of living beyond traditional lifetimes through interstellar travel. He explains the limitations imposed by the laws of physics and the engineering challenges involved in achieving interstellar travel. The concept of time dilation and the idea of generational ships are explored, raising questions about the potential splitting of a species and the challenges of raising children in a new location without communication with Earth.
Brian Greene delves into recent developments in string theory, which provide insights into the ingredients of space and time. He discusses the concept of quantum entanglement and its implications for the nature of space. The potential tearing of space-time and the role of string theory in repairing it are explored. The combination of quantum mechanics and general relativity in string theory unveils new behaviors and possibilities in space, including the transmutation of black holes into elementary particles.
The decline in science book reviews due to newspaper staff cuts is highlighted, impacting the dissemination of scientific knowledge. The existence of missing laws of physics that could further our understanding is discussed. While scientific advancement may require significant resources, alternative approaches may also contribute to progress. The limitations of the human brain in comprehending deep truths are acknowledged, but there is no evidence of an ultimate limit to our ability to figure out the mysteries of the universe.
The idea that we manufacture our own meaning in a universe governed by mindless laws of physics is explored. The role of religion in understanding our place in the universe, as opposed to understanding the external world, is discussed. The possibility of an infinite or curved universe and the unknown existence of an end to the universe are considered. The potential impact of contact with intelligent extraterrestrial life on scientists and religious beliefs is examined. The grand mystery of consciousness and its origins remains a topic of exploration and debate.
In this thought-provoking episode, Brian Greene engages in cosmic queries about the future of humanity, the mysteries of space and time, scientific advancement, the limits of understanding, and the role of meaning and religion in the universe. Through his insights and expertise, he encourages us to contemplate our place in the cosmos and embrace the wonders that lie beyond our current understanding.