The episode explores the evolving relationship between physics and philosophy. Initially, physicists were also philosophers, but the 20th century saw increased specialization. The discussion questions whether philosophers of physics are still relevant to the cutting edge of scientific discovery. The intersection happens at the edge of science, where empirical testing is limited.
The initial integration of physics and philosophy in the past.
The modern specialization of these fields.
The role of philosophy in questioning the fundamental assumptions of physics.