American physicist
Leonard Susskind (born January 1, 1940) is an American physicist, who is a professor of theoretical physics at Stanford University, and founding director of the Stanford Institute for Theoretical Physics. His research interests include string theory, quantum field theory, quantum statistical mechanics and quantum cosmology. He is a member of the US National Academy of Sciences, and the American Academy of Arts and Sciences, an associate member of the faculty of Canada's Perimeter Institute for Theoretical Physics, and a distinguished professor of the Korea Institute for Advanced Study. Susskind is widely regarded as one of the fathers of string theory. He was the first to give a precise string-theoretic interpretation of the holographic principle in 1995 and the first to introduce the idea of the string theory landscape in 2003.
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Elegance requires that the number of defining equations be small. Five is better than ten, and one is better than five. On this score, one might facetiously say that String Theory is the ultimate epitome of elegance. With all the years that String Theory has been studied, no one has found even a single defining equation! The number at present count is zero. We know neither what the fundamental equations of the theory are nor even if it has any.
La maggior parte delle costanti è regolata con uno scarto dell’uno per cento, il che significa che se il valore differisce dell’uno per cento tutto collassa. I fisici possono certo affermare che si tratta di un colpo di fortuna ma bisogna riconoscere che questa costante cosmologica è regolata con una precisione di 1/10120. Nessuno pensa che si tratti unicamente di un caso. E’ l’esempio più estremo di regolazione iperfine...