Physicists Debate the Merits of String Theory

Is string theory the answer to the last big questions in physics, or a dead end? While some physicists believe that string theory could lead to a unifying theory, detractors say it's sloppy and founded on unwarranted assumptions.

Lee Smolin, author of The Trouble with Physics; faculty member, Perimeter Institute for Theoretical Physics

Brian Greene, author of The Elegant Universe and The Fabric of the Cosmos; professor of mathematics and physics, Columbia University

Comments

 

Please keep your community civil. All comments must follow the NPR.org Community rules and terms of use, and will be moderated prior to posting. NPR reserves the right to use the comments we receive, in whole or in part, and to use the commenter's name and location, in any medium. See also the Terms of Use, Privacy Policy and Community FAQ.