Dr. David Wallace is a philosopher of science and a physicist, with doctorates in physics and philosophy. He works on the foundations of physics, and he is a proponent of the many worlds interpretation of quantum mechanics. His list of works can be found below. In this podcast episode, we discuss the "philosophy of physics" lens to look at different topics in physics. Some links 1) Dr. Wallace's list of works: https://inspirehep.net/authors/984235?ui-citation-summary=true 2) Support this channel: https://www.patreon.com/phymaths 3) Become our YouTube member: https://www.youtube.com/channel/UC3nAENP4F5GKrGk9BLNFLvw/join 4) Link to the high energy physics resources page on my website: https://hassaansaleem.com/graduate-level-theoretical-physics-resources-in-progress/ Contact Info My website: hassaansaleem.com Follow on Instagram: https://www.instagram.com/hassaan.3142/ Join the Whatsapp channel: https://whatsapp.com/channel/0029Va9DkjmAzNbs7IlGuv1X Follow on Twitter: https://twitter.com/Hassaan_PHY Email Queries: greatestmight@gmail.com Time stamps (0:00) Coming Up (0:29) Introduction of the guest (1:04) Real patterns in physics (10:00) Interpretation vs precisification (16:48) Are ghost fields real? (23:02) Emergence of time (25:24) Difficulties in doing interdisciplinary work (32:20) Should you do a philosophy PhD? (34:50) Did the 2022 Nobel Prize change anything? (37:20) Quantum mechanics isn't underdetermined (43:15) Dynamics-first vs geometry-first (46:25) Born rule in many worlds interpretation (1:01:25) Consciousness in a branching universe (1:06:38) Quantum Gravity (1:10:10) Does gravity need to be quantized? (1:16:00) (People's question) Interpreting path integrals (1:18:10) (People's question) Philosophical input in physics (1:23:47) Earlier physicists reading philosophy (1:26:03) (People's question) Generalizing a measurement (1:27:30) (People's question) Detecting many worlds? (1:31:25) (People's question) Renormalization