vision - princeton universityphysics.princeton.edu/strings2014/slides/gross.pdfissue in the case of...
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VISIONDavid Gross
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A PERSPECTIVE ON
STRING THEORY!! !
David Gross!!Institute For Theoretical Physics, Santa Barbara
!n"rna#onal Conference on S$ing %eory&'eijing, China&(ugust 17, 2002&
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PERSPECTIVES
DAVID GROSS
STRINGS 2007MADRID
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OPENING REMARKSDavid Gross
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UPPSALA JUNE 27-JULY 2www.strings2011.se
strings 2011
Organizers:Lars BrinkUlf DanielssonUlf LindströmJoseph MinahanAntti NiemiMaxim Zabzine
Kjell och Märta Beijers Stiftelse
OPENING REMARKSDavid Gross
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CLOSING REMARKSDavid Gross
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CLOSING REMARKS
David Gross
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The Scientific Method
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is so flexiblethat no test or combina-on of tests
can disprove it.
The infla/onary paradigm
INFLATION
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STRING THEORY
String Theoryis so flexible
that no test or combina-on of tests can disprove it.
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"At the frontiers of physics and cosmology theoretical speculation proceeds without the constant confrontation with experiment often thought to be required for scientific validation. Richard Dawid explores this issue in the case of string theory. He offers a fascinating new perspective on non-empirical theory assessment,
DG
"Richard Dawid argues that string theory plays a novel role in the scientific process that has been neglected by philosophers of science. I believe that this book is a valuable contribution to the philosophy of science, which should interest practicing scientists as well as those who are more interested in the methodology of science."
John Schwarz
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★ UEA = Unexpected Explanatory Coherence
★ NAA = No Alternative Argument
★ MIA = Meta Inductive ArgumentThe success (emperical) of other theories
in the research program
The Standard Model, Supersymmetry ?, ....
Asymptotic Freedom --> Confinement
Dual Resonance --> String Theory -->Gravity , SuperSymmetry, Unification, Black Hole Entropy -->,.. . . . . . . .
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HOW DO THE FORCES UNIFY?
STRENGTH
OFFORCE
ENERGY
STRONG
WEAK
E & M
1028ev1013ev
GRAVITY
String Theory
UNIFICATION
TEVInflation
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My Theory of
History
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t
GoodThings
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STRING THEORY IS ALIVE & HEALTHY
MANY NEW & BRILLIANT STRING THEORISTS
THE STRINGS CONFERENCE CONTINUES TO FLOURISH
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INDIA: ICTS in Bangalore 2015
CHINA: Tsingua in Beijing 2016And the site of the “Great Collider”
ISRAEL: 2017JAPAN: 2018BELGIUM : 2019 ?MIT-HARVARD, STANFORD, CHICAGO, . . . . . .????
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THE END