### The Logic of Process, and the Origin of Quantum Theory [64 mins]

This talk was given at the Laws of Nature Workshop (all recorded talks here), held at Perimeter Institute (20th–22nd May 2010).

[0–43 mins] Description of a reconstruction of quantum theory based on the paper "Origin of Complex Quantum Amplitudes and Feynman's Rules"

[43-64 mins] Audience Questions & Answers.

[0–43 mins] Description of a reconstruction of quantum theory based on the paper "Origin of Complex Quantum Amplitudes and Feynman's Rules"

[43-64 mins] Audience Questions & Answers.

### Quantum Theory from Complementarity, and its Implications (2009) [31 mins]

This talk was given at the Perimeter Institute–Australian Foundations (PIAF) 2009 Conference (all recorded talks here) that had the subtitle "New Perspectives on the Quantum State". The conference was held at Perimeter Institute (27th Sep—2nd Oct).

[0–11 mins] When we ask the question "What is a quantum state?", what kind of answer are we looking for? To what extent have existing methodologies in quantum foundations been successful in providing these answers?

[12–24 mins] Sketch of a reconstruction of quantum theory based on the paper "Origin of Complex Quantum Amplitudes and Feynman's Rules"

[25–27 mins] Implications of this reconstruction for our understanding of the nature of quantum reality, and the prospects for obtaining a direct, intuitive understanding of it.

[27–31 mins] Audience Questions & Answers.

[0–11 mins] When we ask the question "What is a quantum state?", what kind of answer are we looking for? To what extent have existing methodologies in quantum foundations been successful in providing these answers?

[12–24 mins] Sketch of a reconstruction of quantum theory based on the paper "Origin of Complex Quantum Amplitudes and Feynman's Rules"

[25–27 mins] Implications of this reconstruction for our understanding of the nature of quantum reality, and the prospects for obtaining a direct, intuitive understanding of it.

[27–31 mins] Audience Questions & Answers.

### Why Quantum Theory is Complex (2009) [88 mins]

This talk was given at the Reconstructing Quantum Theory workshop (see all recorded talks here) held at Perimeter Institute (9-16 August 2009).

[0–3 mins] The current status of our understanding of quantum theory. Reconstructing of quantum theory as a next logical step.

[3–46 mins] Description of a reconstruction of quantum theory described in the paper "Origin of Complex Quantum Amplitudes and Feynman's Rules"

[46–88 mins] Audience Questions & Answers.

[0–3 mins] The current status of our understanding of quantum theory. Reconstructing of quantum theory as a next logical step.

[3–46 mins] Description of a reconstruction of quantum theory described in the paper "Origin of Complex Quantum Amplitudes and Feynman's Rules"

[46–88 mins] Audience Questions & Answers.

### From Information Geometry to Quantum Theory (2008)

I have given two talks with this title, one shorter (at The Clock and the Quantum Conference), and one longer (in Perimeter Institute's Quantum Foundations Seminar Series). Both talks are based on my paper "From Information Geometry to Quantum Theory".

### An Information-Theoretic Approach to Quantum Theory (2007) [79 mins]

This talk was given in Perimeter Institute's Quantum Foundations Seminar Series, and is based on my paper "An Information-theoretic approach to quantum theory, I".