Summary
In this episode of the StarTalk podcast, Neil deGrasse Tyson and Chuck Nice interview physicist and author Brian Greene about his latest book, "Until the End of Time: Mind, Matter, and Our Search for Meaning in an Evolving Universe." The conversation covers a range of topics related to physics and the universe, including interstellar travel, the limitations of the laws of physics, the potential for human colonization of other planets, and the ethical implications of sending future generations on generational ships. The hosts and guest also discuss the overlap between science and art, as well as the concept of free will.
The conversation delves into recent developments in string theory and the potential for space-time to be stitched together by the threads of quantum entanglement. The hosts also touch on the process of book reviews and the declining number of science book reviews in newspapers. They discuss the limitations of human understanding and the possibility of there being missing laws of physics. They also talk about the concept of meaning and how humans impose order and coherence on the world around them.
The concept of the cosmological horizon and the implications of the accelerating expansion of space are also explored. The hosts consider the possibility that time may function differently beyond the horizon, and that the horizon itself could have a temperature that may impact the future of thought. They also address the question of whether controlling entropy in the universe would allow for time travel, and conclude that it would not, but it would radically change our understanding of the future of the universe.
The conversation also touches on the potential implications of contact with extraterrestrial civilizations on world religions. While most religions would not be greatly affected, some branches may have issues with the idea of other life forms existing. Finally, the hosts discuss the topic of consciousness and its relationship to the physical processes in the brain, and the possibility of a higher level of consciousness allowing humans to better appreciate the mysteries of the cosmos. Overall, the episode provides an engaging and thought-provoking discussion on the mysteries of the universe and humanity's place within it.
