Includes bibliographical references (p. 409-416) and index.

Introduction. Entanglement -- 1. The Socks 1978 and 1981 -- The Arguments 1909-1935 -- 2. Quantized Light September 1909-June 1913 -- 3. The Quantized Atom November 1913 -- 4. The Unpicturable Quantum World Summer 1921 -- 5. On the Streetcar Summer 1923 -- 6. Light Waves and Matter Waves November 1923-December 1924 -- 7. Pauli and Heisenberg at the Movies January 8, 1925 -- 8. Heisenberg in Helgoland June 1925 -- 9. Schrodinger in Arosa Christmas and New Year's Day 1925-1926 -- 10. What You Can Observe April 28 and Summer 1926 -- 11. This Damned Quantum Jumping October 1926 -- 12. Uncertainty Winter 1926-1927 -- 13. Solvay 1927 -- 14. The Spinning World 1927-1929 -- 15. Solvay 1930 -- Interlude: Things Fall Apart 1931-1933 -- 16. The Quantum-Mechanical Description of Reality 1934-1935 -- The Search and the Indictment 1940-1952 -- 17. Princeton April-June 10, 1949 -- 18. Berkeley 1941-1945 -- 19. Quantum Theory at Princeton 1946-1948 -- 20. Princeton June 15-December 1949 -- 21. Quantum Theory 1951 -- 22. Hidden Variables and Hiding Out 1951-1952 -- 23. Brazil 1952 -- 24. Letters from the World 1952 -- 25. Standing Up to Oppenheimer 1952-1957 -- 26. Letters from Einstein 1952-1954 -- Epilogue to the Story of Bohm 1954 -- The Discovery 1952-1979 -- 27. Things Change 1952 -- 28. What Is Proved by Impossibility Proofs 1963-1964 -- 29. A Little Imagination 1969 -- 30. Nothing Simple About Experimental Physics 1971-1975 -- 31. In Which the Settings Are Changed 1975-1982 -- Entanglement Comes of Age 1981-2005 -- 32. Schrodinger's Centennial 1987 -- 33. Counting to Three 1985-1988 -- 34. "Against 'Measurement'" 1989-1990 -- 35. Are You Telling Me This Could Be Practical? 1989-1991 -- 36. The Turn of the Millennium 1997-2002 -- 37. A Mystery, Perhaps 1981-2006 -- Epilogue: Back in Vienna 2005.

An exploration of the seemingly telepathic communication between two separated particles--one of the fundamental concepts of quantum physics. In 1935, Einstein showed that quantum mechanics predicted such a correlation, which he dubbed "spooky action at a distance." That same year, Erwin Schrödinger christened this correlation "entanglement." Yet its existence wasn't firmly established until 1964, in a groundbreaking paper by Irish physicist John Bell. What happened during those years and since to refine the understanding of this phenomenon is the story told here. Drawing on papers, letters, and memoirs, author Gilder humanizes and dramatizes the story by employing their own words in imagined face-to-face dialogues. We see Bohr and Einstein clashing, and Heisenberg and Pauli deciding which mysteries to pursue. We see Schrödinger and Louis de Broglie pave the way for Bell, whose work is here given a long-overdue revisiting. And we see Richard Feynman challenging his contemporaries to make something of this entanglement.--From publisher description.