On the Foundations of Quantum Mechanics, The Netherlands

Originally uploaded by hzenilc. Models and Simulations 2 11 – 13 October 2007 Tilburg University, The Netherlands I attended this conference one month ago. Among several interesting talks, one in particular caught my attention. It was given by Michael Seevinck from the Institute for History and Foundations of Science at Utrecht, The Netherlands. His talk […]

Chaitin cutting an Omega cake with Leibniz cookies.

The NKS Science Conference 2007 held at the University of Vermont included a special session featuring the contributors to the volume  “Randomness and Complexity: From Leibniz to Chaitin” (see related post),  recently published by World Scientific and edited by Cristian Calude. The session was organized by Calude and myself. The program was as follows: 9:45am-12 noon […]

On the possible Computational Power of the Human Mind

My paper On the possible Computational power of the Human Mind (co-authored with my BS thesis advisor Francisco Hernández-Quiroz of the Math Department of the National University of Mexico [UNAM], which I delivered as a lecture 2 years ago at the Complexity, Science & Society 2005 Conference at the University of Liverpool, U.K.) has been recently published […]

International Union of History and Philosophy of Science Conference on calculability and constructivity.

A Conference of the International Union of History and Philosophy of Science (Joint Session of the Division of Logic, Methodology and Philosophy of Science and of the Division of History of Science and Technics) was held in Paris at the Ecole Normale Supérieure on November 17-18th 2006. It was organized by Jacques Dubucs. Appointed president of […]

Seth Lloyd’s quantum universe view

In an exchange of emails, Seth Lloyd and I discussed the topic I wrote about some posts ago. Here is some of it. According to Lloyd, there is a perfectly good definition of a quantum Turing machine (basically, a Turing machine with qubits and extra instructions to put those qubits in superposition, as above). A […]

Is the Universe a Computer? (Ist das Universum ein Computer?) Conference, Berlin, Germany, 6,7 November 2006

Ist das Universum ein Computer? http://www.dtmb.de/Aktuelles/Aktionen/Informatikjahr-Zuse/ Germany, November 2006, Informatik Jahr Deutschen Technikmuseum Berlin From Konrad Zuse’s Invention of the Computer to his “Calculating Space” to Quantum Computing. Lesson One: For someone with a hammer in his hand the world seems to be a  nail. Joseph Weizenbaun. Lesson Two: Knowing the input and the transition […]

Kurt Godel: The writings. Université de Lille III

Kurt Godel workshop for studying his legacy and writings. Lille, France, May 19-21, 2006 My thoughts, ideas, references, comments and informal notes: – The wheel machine, a machine for real computation which I am proposing -as a thought experiment- in a forthcoming paper  on the Church-Turing thesis -Yes, one more paper on the CT thesis!- […]


As part of  Hacking Days we paid a visit to SIGGRAPH 2006. I found interesting stuff regarding the latest developments in computer graphics. There were some very impressive examples of holographics, visual effects, an impressive device using light synchronization with movement rotation to create different effects in a small house, magnetic fluids, a screen with a globe showing the real-time […]

Hacking Days at MIT and Wikimania at Harvard, August 2006.

Hacking Days at MIT and Wikimania at the Harvard Law School came to a close yesterday. Here is a brief summary: Brion Vibber, Chief Technology Officer of Wikimedia, gave many talks. He discussed everything from why wiki projects are difficult to cache (since they are dynamical) to new features to come, like Semantic MediaWiki, a possible Xapian search […]

Computability in Europe Conference (CiE) Report, Wales UK

This is a report on the Computability in Europe Conference (CiE), held at the University of Swansea, Wales in the United Kingdom in July 2006. I attended a mini-course on Quantum Computing given by Julia Kempe, a lecture on the Church-Turing thesis by Martin Davis– who defended it against proposed models of hypercomputation– and a  lecture on Proof […]

International Conference in Complex Systems, NECSI

NECSI/ICCS Conference Report, Quincy, Greater Boston, USA, July 2006. First lesson: For every complex problem there is a simple, neat, wrong solution. I attended talks given by Ed Fredkin on Finite Nature, Lazlo Barabasi on Complex Networks, Christoph Teuscher on Biology and Computation and John Nash on his research upon Game Theory. * Ed Fredkin presented […]