Strings from Almost Nothing - Bootstrapping String Theory from First Principles

Explore the uniqueness of string theory through a rigorous bottom-up approach in this informal high-energy physics talk. Discover how string amplitudes can be uniquely bootstrapped from first principles using modern amplitudes program techniques and quantum field theory constraints. Learn about the extraordinary mathematical properties of string amplitudes that enable UV-completion of gravity, including infinite towers of spinning states and dual resonance phenomena. Examine the physical criteria for scattering amplitudes that lead to string theory emerging as the only consistent solution for quantum gravity. Gain insights into how fundamental principles can constrain the possibilities for quantum gravity theories and understand why string theory's spectrum arises naturally from these constraints.