Varadhan, New York University, for his work in probability theory, especially his work on large deviations from expected random behavior which has revolutionized this field of study during the second half of the 20th century, and become a cornerstone of both pure and appliedprobability.
These episodes in individual tales display such striking regularities in aggregate that some of the social scientists who first applied the rules of probability to human affairs questioned the very notion of free will.