International Conference »Kurt Gödel’s Legacy« Mitschnitt einer Veranstaltung der Kurt-Gödel-Gesellschaft von Donnerstag, dem 25. bis Samstag, den 27. Juli 2019 im Kleinen Festsaal der Universität Wien - Teil 1. Opening - Teil 2. Palle Yourgrau: The Gödel Program and Two Concepts of Time - Teil 3. Marika Taylor: The Holographic Emergence of Spacetime - Teil 4. Charles Bennett: 100 Years of Cosmology - An Experimentalist’s View - Teil 5. Rainer Weiss: The Beginnings of Gravitational Wave Astronomy - Teil 6. David Bennett: Gravitation Lensing - From a Curiosity to an Astronomical Tool - Teil 7. Jan von Plato: Kurt Gödels “Resultate Grundlagen” Notebooks - A Legacy to Be - Teil 8. John D. Barrow: 100 Years of Universes. Public Lecture in Memoriam Wolfgang Rindler - Teil 9. George Ellis: Gödel, Time, and the Evolving Block Universe - Teil 10. Wolfgang Schleich: Visualization of the Gödel Universe - Teil 11. Markus Aspelmeyer: On the Role of Gravity in Table-top Quantum Experiments - Teil 12. Reinhard Kahle: Kurt Gödel and Hilbert's Axiomatic Method - Teil 13. Toby Walsh: The Limits of Computation - Gödel, Turing, AI, and Quantum - Teil 14. Award Ceremony Abstract: In 1949, Kurt Gödel showed that there exist solutions to Einstein’s equations of general relativity allowing for closed timelike curves. A closed timelike curve is a world line (in space and time) along which a material particle can travel returning to its spacetime starting point. The existence of such curves would allow time travel into one’s own past leading to all kind of causality paradoxes. Einstein, commenting on what now is known as the Gödel Universe, remarked about the possible existence of causality violating curves that “this problem had already bothered me when constructing the theory without being able to come to clear conclusions.” Still today, there is an ongoing debate on how physical such solutions are and whether general relativity would prevent the formation of regions where causality violation is possible, e.g. S. Hawking’s proposal of a “chronology protections conjecture”. Some physicists speculate that closed time curves might be ruled out by a future theory of quantum gravity which would replace general relativity and there are many other attempts to overcome that problem. Closely related are Gödel’s philosophical ideas on the existence of time, a subject that he intensively discussed with Einstein in Princetown. “In my view Kurt Gödel’s papers represent an important contribution to general relativity, especially his analysis of the concept time,” said Einstein. The Kurt Gödel Society intends to celebrate the 70th anniversary of Gödel’s seminal publication and the 100th anniversary of the decisive experimental verification of general relativity by organizing a conference at the University of Vienna, Austria. This event brings together prominent researchers from the fields of Physics, Mathematics, Philosophy and Artificial Intelligence.

Kurt Gödel, Geschichte der Naturwissenschaften

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(c) Kurt-Gödel-Gesellschaft (Wien)