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State of the Unification Address

Abstract

After reviewing how M-theory subsumes string theory, I report on some new and interesting developments, focusing on the ``brane-world'': circumventing no-go theorems for supersymmetric brane-worlds, complementarity of the Maldacena and Randall-Sundrum pictures; self-tuning of the cosmological constant. I conclude with the top ten unsolved problems.Comment: 16 pages, Latex. Plenary talk delivered at The Division of Particles and Fields Meeting of The American Physical Society, August 9-12 2000, Ohio State University. Minor corrections and references adde

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