In this YouTube video, Sean Carroll discusses the philosophy of the multiverse. He focuses on the question of whether physics is even science, and on the ontological question of how the world actually works. He emphasizes the importance of thinking about these questions in cosmology.
The video discusses the principle of typicality, which states that we should presume we are typical observers in the multiverse. The principle of typicality is not well defined or well- accepted, and has many questions that need to be answered. The mindscape 200 video discusses a version of the principle of typicality that is more or less universally accepted among modern cosmologists.
In this video, Mindscape 200, physicist Radford Neal discusses the difference between the philosophy of the multiverse and the physics of the multiverse. He argues that the philosophy of the multiverse is more patient and that the approach favored by physicists and philosophers both have their place. Neal is excited about his new job as a philosopher of science and plans to explore more questions that don't fit neatly into disciplinary boxes.