Why Heisenberg went to Copenhagen and what he wanted to say to Bohr are questions which have exercised historians ever since. In Michael Frayn's new play Heisenberg meets Bohr and his wife Margrethe once again to look for the answers, and to work out, just as they had once worked out the internal functioning of the atom, how we can ever know why we do what we do. premiered in May 1998 at the Royale National Theatre, London, and in April 2000 at the Royale Theater, New York. Both productions were directed by Michael Blakemore. ABOUT THE AUTHOR Michael Frayn was born in London in 1933 and began his career as a journalist on the and the is the thirteenth of his plays.