A collection of open lectures that can help us better-understand our neighbors, our society, our planet, our galaxy, and the Universe.
Friday, August 3, 2012
The Paradoxes of Time Travel by Sean Carroll
Science fiction has introduced us all to the idea of traveling into the past - but is it really possible? Sean Carroll talks bout how time travel would possibly work in the context of Einstein's theory of general relativity, including the hypothetical idea of wormholes connecting distant regions of space. Dr. Carroll also explores the logical structure of time travel, and what it implies about predestination and free will. In the end, time travel is probably not possible, but by taking the idea seriously we help understand how the universe works.
About the Lecturer
Dr. Carroll is a Senior Research Associate in Physics at the California Institute of Technology.