Testing the Limits of Cosmology | World Science Festival

As physicists attempt to answer some of science’s biggest questions about the universe, they are testing the limits of experimental and observational science itself. In this program leading physicists, astronomers, and astrophysicists discuss how to push the boundaries of scientific imagination to develop experiments that test the seemingly untestable theories of multiverses, eternal inflation, and exotic particles. Join the conversation about their plans to recreate the Big Bang in particle accelerators here on Earth, as well as their quest to sift through signals from the farthest edges of space for the existence of a multiverse.

This program is part of the Big Ideas Series, made possible with support from the John Templeton Foundation.

PARTICIPANTS:
Nima Arkani-Hamed
France Córdova
Matias Zaldarriaga

MODERATOR:
Mario Livio

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Chapters:
00:00 – Participants Introduction
01:52 – Mario Livio Introduction
06:39 – What Are You Working on Right Now?
16:15 – Tabletop Experiments on Dark Matter
22:07 – Why Gravity Is the Weakest Force
31:19 – Will Dark Matter Ever Have a Breakthrough?
43:06 – Are Dark Matter Discoveries Just Accidents?
46:14 – Are We on the Verge of a Scientific Revolution?
47:55 – Can We Ever Reach a Final Theory?
52:00 – Is the Universe Infinite?
54:30 – How Does Our Universe Interact with the Multiverse?

Testing the Limits of Cosmology
https://www.youtube.com/channel/UCShHFwKyhcDo3g7hr4f1R8A