The Limits of Knowing with Elise Crull

What It Covers

Neil deGrasse Tyson and philosopher Elise Crull examine how philosophy and physics historically intertwined, why they separated in the twentieth century, and how philosophical thinking remains essential for advancing quantum mechanics and fundamental physics today.

Key Questions Answered

• •Historical Integration: Newton's Principia began with philosophical arguments for absolute space and time before deriving laws of motion. Einstein credited philosophical questioning of simultaneity concepts, not mathematical physics alone, as enabling his breakthrough to special relativity theory.
• •Measurement Problem: Quantum mechanics fundamentally challenges objectivity because observers cannot separate themselves from quantum systems being measured. Unlike classical physics where interaction effects can be removed mathematically, quantum measurement irreversibly alters the system, creating the core interpretational challenge physicists face.
• •Entanglement Non-Locality: When quantum particles interact and separate, measuring one particle's property instantaneously determines the other's state without communication between them. This correlation exceeds statistical randomness and cannot be explained classically, representing a genuinely new type of physical interaction requiring philosophical frameworks.
• •Academic Separation: Post-Manhattan Project, physics became hyper-specialized and pragmatic for national security, creating impermeable disciplinary borders. James Conant at Harvard fought to maintain philosophy of science requirements for physics students, recognizing that conceptual reevaluation drives breakthrough discoveries at physics frontiers.