Rob Spekkens: Why the Quantum Wave Function Is Not Real

Perimeter Institute's Robert Spekkens on quantum foundations. His 2004 classical toy theory makes maximum knowledge always incomplete, and out pops no-cloning, teleportation, and interference Feynman deemed impossible classically. He likens our situation to hieroglyphs before Champollion: a category mistake treating quantum states as describing reality when they describe knowledge of it.

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TIMESTAMPS:
- 00:00:00 - Defining Quantum Innovation
- 00:06:40 - Realism vs. Empiricism
- 00:12:12 - Leibnizian Methodological Principle
- 00:23:40 - Causal Explanations of Correlations
- 00:30:24 - Epistemic Quantum States
- 00:41:00 - Foil Theory Methodology
- 00:54:00 - Causal Influence vs. Signaling
- 01:07:27 - Thermodynamics and Ignorance
- 01:15:00 - Conceptual Understanding in Physics
- 01:21:00 - Philosophy of Physics Utility
- 01:30:00 - Speckins' Toy Theory Origins
- 01:40:13 - Perimeter Institute's Ambitious DNA
- 01:52:00 - PBR Theorem Implications
- 02:05:40 - Ontic Separability Assumptions
- 02:17:40 - Hieroglyphs and Category Mistakes
- 02:29:00 - Revolutionizing Modern Physics
- 02:37:20 - Unscrambling Causation and Inference

LINKS:
https://www.rwspekkens.com
https://pirsa.org/speaker/Robert-Spekkens
https://arxiv.org/pdf/2507.01122
https://arxiv.org/pdf/quant-ph/0401052
https://arxiv.org/abs/0706.2661
https://arxiv.org/abs/quant-ph/0406166
https://arxiv.org/pdf/2207.11779
https://amazon.com/dp/1108066488?tag=toe08-20
https://www.jstor.org/stable/687269
https://plato.stanford.edu/entries/qm-copenhagen/
https://plato.stanford.edu/entries/identity-indiscernible/
https://www.fourmilab.ch/etexts/einstein/specrel/specrel.pdf
https://plato.stanford.edu/entries/spacetime-holearg/
https://www.sciencedirect.com/topics/mathematics/hidden-variable-theory
https://www.nature.com/articles/299802a0
https://arxiv.org/pdf/2011.01286
https://link.springer.com/article/10.1007/BF02058098
https://arxiv.org/abs/2005.07161
https://www.sciencedirect.com/topics/engineering/maxwells-equation
https://www.einstein-online.info/en/spotlight/equivalence_principle/
https://perimeterinstitute.ca/
https://amazon.com/dp/9810241054?tag=toe08-20
https://journals.aps.org/pr/pdf/10.1103/PhysRev.47.777
https://arxiv.org/abs/1111.3328
https://www.smithsonianmag.com/history/rosetta-stone-hieroglyphs-champollion-decipherment-egypt-180980834/
https://www.sciencedirect.com/science/article/abs/pii/S0160932707000282
https://youtu.be/gEK4-XtMwro
https://youtu.be/YWbjI-QsH2E
https://youtu.be/fU1bs5o3nss
https://youtu.be/NKOd8imBa2s
https://youtu.be/6I2OhmVWLMs
https://youtu.be/Tghl6aS5A3M
https://youtu.be/HIoviZe14pY
https://youtu.be/bprxrGaf0Os
https://youtu.be/4MjNuJK5RzM
https://youtu.be/gsSJPLX-BTA

Theories of Everything with Curt Jaimungal features long-form, technically detailed interviews with leading researchers in physics, mathematics, consciousness, and philosophy, exploring topics at the level of active research. For academics, graduate students, and anyone seeking depth beyond popular science.

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