Second International Conference on the Ontology of Spacetime


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Public Lecture

Public Lecture

At the end of the conference there will be a public lecture which is organized by the International Society for the Advanced Study of Spacetime and TaU, Time and Universe.

Speaker: Robert Geroch (Department of Physics, University of Chicago)
Title: Time Travel

Each of us has imagined, at one time or another, what it would be like to travel through time -- to revisit our past or perhaps have a quick glimpse of our future. Is time travel really possible? This is the sort of question that physical theories are designed to answer; and the relevant physical theory in this case is Einstein's general theory of relativity. So: Does general relativity allow time travel, or does it not? The answer is: It all depends (on what ingredients are included in "the theory"). This answer is not as satisfying as one might have hoped, but is typical of how physical theories often respond to Big Questions. Our discussion of how all this comes about will serve as a backdrop for what Einstein's theory is (and isn't), and how theories do (and sometimes don't) generate specific predictions.

Date: Sunday, June 11, 2006
Time: 19:30
Room: H-110
Place: Concordia University (Building H), 1455 de Maisonneuve Boulevard West, 1st Floor (Metro station Guy-Concordia, exit Guy Street)

Public Lecture Poster - image, PDF