Quantum Theory at the Crossroads

The 1927 Solvay conference was perhaps the most important in the history of quantum theory. Contrary to popular belief, questions of interpretation were not settled at this conference. Instead, a range of sharply conflicting views were extensively discussed, including de Broglie''s pilot-wave theory (which de Broglie presented for a many-body system), Born and Heisenberg''s ''quantum mechanics'' (...