At Wheeler's insistence , Everett in March 1959 visited Copenhagen in order to meet with Bohr (and with Petersen and Misner as well ). Evidently Wheeler wanted to know the attitude of his mentor to the theory of his graduate student [19, page 8]. Everett, with his wife, stayed in Copenhagen for six weeks, until April 21 [19, page 8; 69]. The meeting with Bohr did take place, but the 75-year-old patriarch was not inclined to discuss seriously "any new (strange) upstart theory"  and, it seems, did not give Everett a chance to express himself. Everett has only the most gloomy memories of this meeting, and was rather reluctant to recollect it at all [19, page 8]. From Frank Tipler I have learned that Mrs. Everett said in a private conversation with L. David Raub that "Bohr refused to talk to Everett about the MWI [many-worlds interpretation]" [70a].
But in his Copenhagen hotel, the Osterport, Everett came up with a big mathematical idea, which, five years later, became the intellectual contribution to and foundation for the company "Lambda," which brought big money to him [19, page 8]. This idea, scratched, in the best traditions of science fiction, on three sheets of hotel letterhead , consisted of the application of Lagrange multipliers to the solution of optimization problems. The idea had to ripen for four years-perhaps because of declassification delays. (As a sign of Everett's transition from physics to mathematics during these years one may take note of a letter from P. Greene to Everett, in which interest to the concept of relative states is claimed in connection with studies of properties of cognitive systems and perceptual machines ).
One might say that Everett was a model of punctuality [13, 55]. In two of his main ideas one can discern features of a stable paradigm: Both ideas were born with the help of Bacchus [19, page 1; 69]), and both were published simultaneously with the birth of a child (in the second case it was his son Mark Oliver, born on April 10, 1963 ).
Everett's ideas in mathematics as well as in physics have not received due recognition-although mathematicians, with perhaps a twinge of jealousy, say that to reduce Everett only to a physics genius is to diminish him . He is not as much honored in textbooks as, say, Joseph David Everett, FRS (1831-1904), Professor of Physics at Queens University in Belfast, famous for his work in interpolation [73, also 74]). However, Hugh Everett III did not avoid mention in high-school math textbooks, too: "It was Everett who first suggested, as early as 1963, the use of Lagrange multipliers in discrete optimization problems. However a boom in this area began after the appearance of work by Hald and Charnes devoted to the traveling-salesman problem." . Abe Charnes was an important figure in mathematics , and in 1965 he published a note about Everett's method , from which one could see that the master misunderstood one of Everett's key concepts-the "gap." (As H. Greenberg notes , most people in optimization theory now use the term routinely, but hardly any remember it was Everett who defined it first.)
Everett's last printed work, a brief explanation in answer to Charnes' note , obeyed the punctuality paradigm: It appeared simultaneously with the birth of his newest "child," the private corporation "Lambda" .